The highly secular and all-encompassing
      philosophy of 
Hinduism is ever-evolving. Adopting
      religious views of innumerable schools of thought and adapting rapidly to
      the changing times, it is known to be one of the dynamic systems of
      philosophy and religions in the world. Hence, Hinduism is not merely a
      religion or a philosophy - it is veritably a way of life. Its teachings
      are relevant then, now and forever.
      
      Hinduism discusses all aspects of life and living, giving followers
      practical and workable tips on living a peaceful, joyful and prosperous
      life, without putting in too much effort into it all. According to the
      philosophy, self-realization is the key to understanding the secrets of
      life and, ultimately, living a life full of peace and joy.
      
      This concept of self-realization; the understanding of reality and
      decoding the "I" factor, gave rise to three main streams of philosophy,
      which now make up the entire fabric of Hindu thought as a whole. These
      three sub-schools of Vedanta or Vedantic thought constitute Advaita,
      Dvaita and Visishtadvaita. Simply put; the basic difference between the
      three Vedantas lies in the way they define the concept of reality and
      nature.
      
      All Vedantic philosophies are based on Prasthaanatrayi, or the three
      axioms of Vedanta, as follows:
      
      1. 
The Upanishads,
      known as Upadesha Prasthana and the Sruti Prasthana
      2. 
The Brahma Sutras, also known as Nyasa Prasthana or
      Yukti Prasthana
      3. 
The Bhagavad
          Gita, also known as Sadhana Prasthana and the Smriti
      Prasthana
      
      All the three Vedantas rely on these Prasthanas. The scriptures deal in
      detail with the relationship between Brahma (the Ultimate Reality), Atman
      (the Individual Soul) and Jagat (the World). They also advise the follower
      on the path to be taken in order to attain moksha (salvation) from Samsara
      (bondage from this material world). The main difference between these
      schools of thought arises because the Prasthanatrayi talks about both the
      Brahman with attributes (Saguna) and the Brahman without attributes
      (Nirguna).
      
      Three great Hindu saints and seers were primarily responsible for
      propagating these schools of Vedanta. They were as follows:
      
        -  Adi Shankaracharya for Advaita
 
        -  Madhvacharya for Dvaita
 
        -  Ramanujacharya for Visishtadvaita
 
      
      In this post, we bring you the lives and times of the above-mentioned
      saints, also discussing each of their philosophies.
      
      Adi Shankara was an early 8th century philosopher and theologian, who
      propagated the Vedanta of Advaita. Shankara was a great seer, who was
      responsible for unifying and establishing the main tenets of Hinduism.
      
Birth 
      One can find several biographies charting out the life of Adi Shankara.
      Some were written many centuries to a thousand years after Shankara's
      Samadhi. Available in both Sanskrit and non-Sanskrit languages, they are
      filled with legends and tales; many, which contradict each other.
      
      Sringeri records mention that Shankara was born in the 14th year of the
      reign of Vikramaditya. However, it is unclear as to exactly which king
      this record refers to. Some scholars aver that it was mostly Vikramaditya
      II. The most popularly accepted date is from the first half of the 18th
      century. Shankara was born at Kalady, a town located in Angamaly, Kerala.
      He was born to Namboodiri Brahmin parents.
      
Life
      Shankara's father expired while he was very young. Hence, the boy's
      Upanayanam (thread ceremony) had to be delayed and was later performed by
      his mother. Shankara was attracted to the life of a Sannyasa (hermit) from
      a very young age. His mother, though, disapproved of this inclination of
      her son.
      
      According to legend, at the age of eight, Shankara and his mother went to
      River Sivataraka to bathe. When he went into the water, he was caught by a
      crocodile. He called out to his mother to give him permission to become a
      Sannyasin. He said the crocodile would end up killing him otherwise. The
      mother had no choice except to give in. The boy then left home to pursue
      his education.
      
      Traveling for some time, he reached a Saivite sanctuary, situated along
      the banks of a river. There, he met a teacher named Govinda Bhagavatpada
      and became his disciple. Some accounts suggest that the school was located
      by the Narmada in Omkareshwar. Others narrate that the place was along the
      Ganges in Kashi as well as 
Badrinath
      in the Himalayas. Most biographies relate that Shankara studied the Vedas,
      Upanishads and Brahmasutras under his Guru. He also had the opportunity to
      meet several scholars of the Mimamsa school of Hinduism, such as Kumarila
      and Prabhakara, as well as several Buddhists.
      
Shankara Returns Home
      As per some accounts, Adi Shankara was returning from Kashi, when he came
      to know that his mother had taken seriously ill. He came back home to look
      after her in her last days. By way of his divine powers, he gave her a
      vision of Lord 
Shiva.
      She, however, became fearful looking at the Lord. Then Shankara prayed to
      Lord Narayana to grant her moksha. Seeing Vishnu's form, the old lady
      calmed down, prayed to him and peacefully breathed her last.
      
      
      
     
    
      Shankara wanted to perform his mother's last rites as he had promised her
      earlier. However, the locals opposed this, saying that a Sannyasi should
      not perform last rites. They further refused to offer him firewood for
      cremating her. Shankara then laid her on the fresh bark of plantain trees
      that he procured from their own backyard, lighted it and prayed to Lord 
Agni
      (God of Fire) to consume her. Agni obliged Shankara and consumed the
      plantain bark, which is usually non-combustible.
      
      Overwhelmed by the incidents, Adi Shankara instantly composed the
      Maatru-Panchakam, a set of 5 verses, glorifying the greatness of
      motherhood. He thus defied all customs, stating than nothing and no one
      could ever be greater than a mother.
      
      Legends relate that thereafter, Shankara undertook many pilgrimages, took
      part in public debates and installed several 
lingas
      and even founded monastic centers all over India.
      
Tours and Travels
      Over the next years, Adi Shankara traveled widely within India. It is
      believed that ten monasteries were founded by him, each following the
      principles of Advaita Vedanta, which he actively propagated. Out of these,
      four still continue with this tradition. They include Bharati (Sringeri),
      Saraswati (Kanchi) and Tirtha and Asramin (Dwaraka). He had a number of
      disciples, including Padmapada (also called Sanandana), Sureshwara,
      Tothaka, Citsukha, Brahmendra and many more. Some of the most prominent
      disciples authored works on Shankara and Advaita.
      
      Shankaracharya's detailed works in Sanskrit discuss the united nature of
      the Atman and the Nirguna Brahman. He shunned all types of ritualistic
      philosophies, also highlighting the key differences between Hinduism and 
Buddhism.
      He firmly stated that, in Hinduism, the Atman existed, whereas, in
      Buddhism, there was no concept of Self or Soul.
      
      He further talked about the importance of monastic life and tirelessly
      worked to spread his unique philosophy of Advaita, thus being known as the
      greatest revivalist. He soon came to be famous as Adi Shankaracharya,
      Shankara Bhagavadpada and Shankara Bhagavadpadacharya.
      
Death
      Adi Shankara is believed to have attained Samadhi at the age of 32, at 
        Kedarnath in Uttarakhand, which is an important pilgrimage site for
      Hindus. According to texts, his students last saw him walking on the
      mountains of the Himalayas. Suddenly, he disappeared and could not be
      traced. Some texts relate that he shed his mortal coil in locales such as
      Kanchipuram in Tamil Nadu and somewhere in the state of Kerala.
      
Philosophical Works
      Shankara is most known for his Bhashyas (systematic reviews and
      commentaries) on ancient Indian treatises. The Brahmasutrabhashya was his
      foremost work and went on to become a fundamental text of the Vedanta
      school of Hinduism. His commentaries on ten Mukhya Upanishads are also
      considered to be important. Other works include commentaries on the
      Bhagavad Gita and his Vivarana on the commentary by Vedavyasa on
      Yogasutras and the Apasthamba-Dharma sutras.
 
    
      
      
      
      
      
        
          
          8 Upanishadas - with Commentary of
            Sankaracharya
            Book Set of 2 Volumes
          
         
       
     
    
    
    
    
    In the Stotra (poetic works) category, Adi
      Shankara is attributed as the author of Daksinamurti Stotra, the
      Bhajagovinda Stotra, the Sivanandalahari, the Carpata-panjarika, the
      Visnu-satpadi, the Harimide, the Dasa-shloki, and the Krishnashtaka.
      Shankaracharya also authored Upadesasahasri, which is his most important
      work. Other than the original Prakaranas, seventy six works were
      attributed to the Acharya. 
      
      Shankara's stotras include hymns dedicated to both 
Krishna
      (Vaishnavism) and Shiva (Shaivism). These two are usually considered as
      two entirely different sects within Hinduism. However, the Advaitic nature
      of his philosophy tried to propagate a universal, unified view of Vedanta.
      
Advaita Vedanta
      
        - Adi Shankara systematized the works of his predecessors. His Advaita
          (non-dualism) philosophy postulates that the Atman is but one with the
          Brahman. According to him, the Atman is unchanging, while other
          changing realities are not absolute. Advaita Vedanta is based on
          shastra (scriptures), yukti (reasoning) and anubhava (experience).
          Shankaracharya's thinking was that a Jivanmukta (one liberated during
          the course of his lifetime) would be self-realized and would be aware
          of Oneness of Self and the Universal Spirit.
 
        - The Acharya averred that, while the practice of Yoga
          would be helpful, it would not be able to gaining moksha. The follower
          would have to deeply study the Upanishads and delve into their real
          meaning. To Shankara, the study of the Upanishads was the necessary
          and sufficient means to attain moksha. He also stressed on the
          presence of the Guru to impart the necessary knowledge.
 
        - The world, though not unreal, is illusory once the perception of the
          highest Brahman is attained. This knowledge can be attained by
          following the four-fold path of Viveka (discrimination); Vairagya
          (detachment); Sama, Dama and Shraddha (calmness, self-control and
          patience) and Mumukshutva (constant yearning to attain liberation).
 
        - Bhakti or Devotion is only one step to attain the grace of God. This
          would be the first step to understand the non-dualistic nature of the
          Jeevatma and the Paramatma. 
 
      
      While Shankara's Vedanta is similar to Mahayana Buddhism, the main
      difference is that Hinduism believes in the existence of Atman - something
      that is completely absent in the latter.
      
Influence on Hinduism
      Shankara's philosophy and teachings form the basis of Smartism and have
      influence Sant Mat lineages. He introduced the Panchayatana path of
      worship - the worship of five deities, namely, Ganesha, Surya, Vishnu,
      Shiva and Devi. He explained that all these deities were but forms of the
      One Eternal Brahman. Though many seers had tried to propagate Advaita
      earlier, it was only after Adi Shankaracharya that it became the
      systematized Vedanta that it is today.
      
      Shankaracharya reformed Smartas and revived the tradition. He not only
      fought to wipe out the orthodoxy and the varnasrama dharma theory they had
      followed till then; but he also encouraged them to follow the practice of
      panchayatanapuja, in order to unify the entire system as a whole.
      
      Adi Shankaracharya's teachings have shaped much of the Hindu psyche and
      continue to be as relevant even in today's modern world.
      
Madhvacharya - Dvaita Vedanta
      Madhvacharya, also known as Purnaprajna and Ananda Teertha, was the main
      proponent of the Dvaita (dualism) school of Vedanta. He referred to his
      philosophy as Tatvavaada, meaning, "arguments from a realistic point of
      view".
      
      
      
      Birth
      Madhva was born in Karnataka, in the 13th century. Right from his young
      years, he was attracted towards spirituality. He entered Sannyasa when he
      became a teenager. Joining Brahma-sampradaya guru Achyutapreksha of the
      Ekadandi order, he studied the Principal Upanishads, the Bhagavad Gita and
      the Brahma Sutras (Prasthanatrayi). He then commented on these, also
      penning thirty-seven works in Sanskrit. 
      
      His style of writing was clear and precise, without any ambiguity. The
      Anuvyakhyana, a supplement to his Bhashya on the Brahma Sutras, is
      considered to be his greatest ever work. This is composed in poetic form
      and structure.
      
      Over the years, he toured India several times, visiting Hindu centers of
      learning and engaging in philosophical debates. He established the Krishna
      Mutt at Udupi, installing a murti (idol) that he procured from Dwaraka in
      Gujarat in 1285 CE.
      
Self-Proclamation as Vayu
      In many of his works, he refers to himself as an avatara of Vayu, the Wind
      God and the Son of Lord Vishnu. He thus compared himself to Hanuman and
      Bhima, the strongest of the Pandava Princes in the 
Mahabharata.
      In one of his Bhashyas on the Brahma Sutra, he states that his experience
      comes from an actual encounter he had with Lord Vishnu himself.
      
Life
      As in Shankaracharya's case, the biography of Madhvacharya, too, is
      unclear. Some sources date him to the period between 1238 and 1317. Some
      others say he lived around 1199 to 1278.
      
      Madhva was born in Pajaka near Udupi, a coastal district in present-day
      Karnataka. It is believed that he was the son of Naddantillaya and
      Vedavati, who were Tulu-speaking Vaishnavite Brahmins. He was named
      Vasudeva at birth. He was conferred with the name Purnaprajna after his
      initiation into sannyasa. When he became the head of his 
monastery,
      he was given the name Ananda Teertha. The names Madhva and Madhvacharya
      can be mostly found in Dvaita Vedanta related works or in modern
      literature on him.
      
      Madhva began his schooling at the age of seven, after his Upanayana
      (sacred thread ceremony). Though he studied Advaita Vedanta, he was not
      convinced by the theory of non-dualism and had frequent debates on this
      issue with his 
Guru.
      He then left the monastery and began his own Dvaita movement, based on the
      principle of dualism. After that, he never referred to Achyutrapreksha as
      his guru and also never spoke or wrote about his monastic lineage.
      
      Several biographies have been written by Madhva's disciples. Of these, the
      most popular one is the sixteenth cantos Sanskrit Madhvavijaya, penned by
      Narayana Panditacharya, son of Trivikrama Pandita.
      
Philosophy
      Madhva was a severe critic of Adi Shankara's Advaita Vedanta (based on
      non-dualism) and Ramanuja's Vishishtadvaita Vedanta (based on qualified
      non-dualism). His teachings are based on the premise that there is a
      fundamental difference between the Atman and the Brahman. According to
      him, the two are different unchanging realities, which can never be
      identical. The individual soul, he stated, was dependent on the Brahman.
      Moksha could be attained only and only by the grace of God. Madhava's
      Dvaita Vedanta influenced Vaishnavism and the 
Bhakti
      movement in medieval India.
      
Literary Works
      Madhva is credited with the creation of thirty seven Dvaita texts. Of
      these, thirteen are Bhashyas on the Principal Upanishads, Brahma Sutras,
      the Bhagavad Gita, a commentary on forty hymns of the Rigveda, a review of
      the Mahabharata in poetic style and a commentary called
      Bhagavata-tatparya-nirnaya, on the Bhagavata 
Purana.
      Madhvacharya restricted outsiders, who were not from the Dvaita school,
      from accessing any of his work.
      
Dvaita Vedanta
      
        - Madhva's epistemology, which he referred to as Anupramana, accepts
          three paths to achieve the right type of knowledge. They are as
          follows:
 
      
      a. Pratyaksha - Meaning
        "perception", it is of two types, namely, external and internal.
        External perception arises from the interaction with the outer world and
        the five senses; whereas, internal perception is attained from the inner
        sense, the mind.
        b. Anumana - This means "inference". It implies
        reaching a new conclusion and truth from one or multiple observations
        and previous truths, by applying practicality and reasoning. For
        example, if one sees smoke, one can infer there is a fire. This Anumana
        comprises three parts, namely, pratijna (hypothesis), hetu (reason) and
        drishtanta (examples).
        c. Shabda - Meaning "word", this relies on the
        testimony of past or present experts. As per the Dvaita tradition, it is
        also known as Agama and incorporates all the Vedas. According to this
        principle, a human being needs to know innumerable facts. Using the
        limited time and energy available to him, he can learn only a fraction
        of these facts and truths.
      
        - According to Madhva, the kevala-pramana or the "knowledge of an
          object as it is" is separate from the Anupramana, mentioned above.
 
      
      
        - Madhva's Dvaita Vedanta states that Vishnu is the Supreme Lord. He
          can be attained only through proper samanvaya (connection) and
          pramana. Vishnu is not the one who created the Vedas, but he is the
          preceptor of the same. As stated by the Mimamsa school of Hindu
          philosophy, Madhvacharya too believed that the Vedas are authorless
          and they hold the ultimate truth in all their parts.
 
      
      
        - Knowledge is the key to all, according to this philosophy. Moreover,
          both the karma-kanda (ritual part) and the jnana-kanda (the knowledge
          part) in the Vedas are equally important and are also interconnected.universe
 
      
      
        - Madhva talked about the existence of two primary tattvas or
          categories of reality, namely, svatanta tattva (independent reality)
          and asvatantra tattva (dependent reality). According to the Acharya,
          Ishwara (or the Lord)
          is the cause of the universe and is the only independent reality.
          The  thus created is the dependent reality. This consists of Jiva
          (individual souls) and Jada (material things). Jiva and Jada are all
          distinct realities. They are also all different from one another. No
          two souls and things are alike - each one is unique. All are full and
          complete in themselves, yet, the completeness is different in each
          case.
 
      
      
        -  Madhva further elaborated on the difference between the two tattvas
          as a pancha-bheda or five-fold division, which are as follows:
 
      
      a. Between material things
        b. Between material things and the soul
        c. Between material things and God
        d. Between souls
        e. Between souls and God
      
        - Dvaita Vedanta states that the Brahman always enjoyed His own bliss,
          while the entire creation was constantly evolving through a process of
          chaos. The Brahman manifests once in a while, in order to help this
          process of evolution. He takes the forms of Vasudeva, Pradyumna,
          Aniruddha and Sankarsana - these forms are responsible for redemption,
          creation, sustenance and destruction, respectively. All manifestations
          are equal and is made up of the same infinite matter.
 
      
      
        - In a major departure from the popular Hindu philosophy of "Tat tvam
          asi" (Thou art That), Madhva's Dvaita school reinterpreted it, parsing
          the text as "Atat tvam asi" (Thou art not That). In this way too, he
          severely denied that the Jivatma and the Paramatma were the same.
 
      
      
        - According to Madhva, Jnana Yoga and Karma Yoga were insufficient to
          attain mukthi. The element of Bhakti (devotion) and total surrender
          alone could help the devotee win the grace of the Lord, thus granting
          him mukthi.
 
      
      
        - Evil and suffering in this world, according to Dvaita Vedanta,
          originates only in man. Every Jiva has the right to free will, but is
          ultimately influenced by his sthayi (nature), inclinations and past
          karma. He has the ability to choose between right and wrong and so, he
          will take on the responsibility for it.
 
      
      Views on Other Schools
      Madhva severely criticized all other schools of Vedanta, such as Buddhism
      and 
Jainism.
      He came down fiercely on Adi Shankaracharya's Advaita school, accusing
      them of being "deceitful demons"; teaching Buddhism under the name of
      Vedanta. He said that Advaita was a version of Mahayana Buddhism, which he
      considered as nihilistic.
      
      Such a severe critic was he that he wrote four major texts, including
      Upadhikhandana and Tattvadyota, mainly aiming to undermine Advaita
      Vedanta. Madhvacharya also strongly disagreed with Ramanuja's
      Visishtadvaita Vedanta.
      
Influence on Hinduism
      
        - Madhvacharya's influence led to the formation of the Haridasa sect
          of Vaishnavism in Karnataka, which is also referred to as Vyasakuta,
          Dasakuta or Dasa Dasapantha. They made a great contribution to the
          Bhakti movement, with their beautiful and meaningful devotional songs.
 
        - The Acharya's influence is most prominently seen on the Chaitanya
          school of Bengal Vaishnavism and in Assam as well.
 
        - A subsect of Gaudiya Vaishnavas from Orissa and West Bengal proclaim
          themselves to be followers of Madhvacharya.
 
        - The Acharya established eight Mutts in Udupi. They are called the
          Madhva Mutts or Udupi Ashta Mutts. They are laid out in a rectangle
          and surround the Anantheshwara Krishna temple. Incidentally, the
          monks' studies and their course of succession (Paryaya system) were
          also established by Madhva.
 
        - There are twenty four other Madhva Mutts set up all over India. All
          of them follow the procedures as stipulated by the Acharya in his
          Tantrasara. 
 
      
      Ramanujacharya - Visishtadvaita Vedanta
      Ramanujacharya
      was yet another important exponent of the tradition of Vaishnavism. He was
      born into a Tamil Brahmin family in the village of Sriperumbudur, Tamil
      Nadu. His philosophy highly influenced the Bhakti movement. He is also
      known by names such as Sri Ramanujacharya, Udaiyavar, Ethiraajar,
      Bhashyakarar, Godaagrajar, Thiruppavai Jeeyar, Emberumaanaar and Lakshmana
      Muni.
      
      Ramanuja's most important contribution to Hinduism was his establishment
      of the Visishtadvaita (qualified monism) Vedanta. According to this school
      of philosophy, there exists plurality and distinction between Atman and
      Brahman. However, he also asserted that there is a unity of all souls and
      that each individual soul has the potential to become one with the Supreme
      Brahman.
      
        
        
        
          
            
            Ramanuja - Papier Mache Statue
           
         
       
      
      
      Life
      The complete details of Ramanuja's birth are unknown. However, some
      records indicate that he was born between 1017-1137 CE, to Kanthimathi and
      Asuri Kesava Somayaji. He is believed to have been born in the month of
      Chitra, under the Nakshatra (star) Thirvathirai. Yet other sources suggest
      that Ramanuja may have lived between 1077-1157 CE. His followers wrote
      hagiographies - some, several centuries after his Samadhi. Followers of
      this sect believe them to be true.
      
      One such hagiography suggests that Ramanuja learned the Vedas when he was
      merely eight days old. He is then believed to have communicated with God
      as an adult and even won philosophical debates with Buddhists, Advaitins
      and such. He is said to have turned himself to his "divine self", the 
Seshanaga,
      to defeat Buddhists. While his ardent followers completely believe these
      legends, modern scholars and skeptics question the reliability of such
      works. With no historical or other basis to justify these claims, it would
      be impossible to accept them, they say.
 
    
      
        
        
        
          
            
            Vishnu and Lakshmi with Sheshnaga - Brass
              Statue
           
         
       
      
      
      When he came of age, Ramanuja married and moved to Kanchipuram to study
      Advaita Vedanta under his Guru, Yadava Prakasa. They both frequently
      disagreed in interpreting texts, especially the Upanishads. After a while,
      Ramanuja separated from his Guru and proceeded to study on his own. He
      preferred to follow in the footsteps of the Alvar tradition and the famed
      scholars, Nathamuni and Yamunacharya.
      
      According to a legend, Ramanuja tried to meet Yamunacharya, but the latter
      attained Samadhi just before that and so, they never met. However, it is
      believed that the corpse of Yamunacharya miraculously rose and named
      Ramanuja the new leader of the Vaishnava sect, which was, till then, led
      by him. Some accounts suggest that after that, Ramanuja renounced his
      married life and became a Sannyasi. However, there are no official records
      to prove this theory.
      
      Ramanuja then became a priest at the Varadharaja Perumal temple at
      Kanchipuram, where he also began to conduct 
spiritual
      discourses. He began to teach that moksha was to be achieved not through
      the nirguna Brahman, but with the help of one's personal God, the saguna
      Vishnu.
      
      Ramanuja grew up during the rule of the Chola dynasty. This period
      witnessed the existence of pluralistic beliefs, where Saivism,
      Vaishnavism, Smartism, Buddhism and Jainism thrived together. Advaita
      Vedanta was the most prevalent philosophy at the time. The Vaishnava
      Sampradaya was already well-established and the concept of bhakti was
      gaining rapid momentum in South India.
      
      In this milieu, Ramanuja gained popularity because he was the first
      thinker who challenged Shankara's Advaitism and offered an alternative
      interpretation of the Upanishads. Ramanuja and his disciples then lived in
      the largely non-sectarian environment offered by the Chola Empire, till
      its decline in the late 12th and 13th centuries. The Acharya also severely
      revolted against the caste system and went as far as converting
      untouchables into priests.
      
Writings
      The Sri Vaishnava tradition attributes nine Sanskrit works to Ramanuja.
      They include the Vedarthasangraha (a summary of the Vedas), Sri Bhashya (a
      commentary on the Brahma Sutras), Bhagavad Gita Bhashya (a commentary on
      the Bhagavad Gita), and minor works titled Vedantapida, Vedantasara,
      Gadya Trayam (a compilation of three texts called the Saranagati Gadyam,
      Sriranga Gadyam and Srivaikunta Gadyam) and Nitya Grantham. Some scholars
      have questioned the validity of the author of these works.
      
      Ramanujacharya's disciples included greats such as Kidambi Aachan,
      Nadadhur Azhwan, Thirukurugai Piran Pillan, Muraliyandan, Koorathazhwan
      and so on. Many of them are considered to be the authors of texts such as
      the Shatyayaniya Upanishad.
      
Visishtadvaita Vedanta
      Ramanuja established the Visishtadvaita Vedanta school of philosophical
      thought; the foundation of which, was qualified monism.
      
      He accepted that Vedas are a reliable source of knowledge and critiqued
      the other two schools of Vedanta, namely, Advaita Vedanta and Dvaita
      Vedanta, as having misinterpreted the Vedic texts. He strongly stated that
      the purvapaksin (previous schools) only selectively support the
      Upanishadic passages and ignore those that support the concept of
      pluralism.
      
      He said that the scriptures should always be considered in their totality
      and not in parts. According to Ramanujacharya, the Vedas mention both
      oneness and plurality and son, the truth must incorporate both monism and
      pluralism. He called this qualified monism or Visishatadvaita Vedanta.
      
Similarities and Dissimilarities with the Other Vedantas
      
        - Ramanuja's Visishtadvaita agrees with the theistic devotional aspect
          of Madhvacharya's Dvaita Vedanta. Both schools state that Jiva and
          Brahman are totally different from each other and that this difference
          can never be transcended. Both schools are of the view that Vishnu
          alone is the independent reality and that all other Gods
          and beings are dependent on him.
 
        - In contrast to Dvaita Vedanta, though, Ramanuja's "qualified
          non-dualism" states that souls share the same essential nature of the
          Brahman; that all souls are the same; and that it is possible for
          every soul to reach the bliss state of the Brahman himself. In sharp
          contrast, Madhvacharya believed that souls would never ever be able to
          reach the state of the Brahman.
 
        - Visishtadvaita and Advaita schools both believe in non-dualism. Both
          systems state that all souls can hope to achieve the blissful state of
          the Brahman. Advaita posits that only the Brahman is the unchanging
          reality, while everything else is relative, illusory and
          ever-changing. Shankara states that the Atman can attain the Brahman
          once it comprehends the truth and its actual nature of oneness with
          the Universal Power.
 
        - In contrast, Ramanuja states that both Brahman and the material
          world are two different absolutes, both metaphysically real. According
          to him, neither is false of illusory. All of the world matter
          constitutes God's form and the path to the nirguna Brahman is through
          devotion and maintaining constant love towards the personal God; the
          saguna Brahman; no other than Vishnu Himself. 
 
      
      Influence on Hinduism
      
        - Ramanujacharya was highly influential, as he developed a different
          approach to Vedanta by giving the concept of bhakti an intellectual
          basis. His Visishtadvaita Vedanta made bhakti the central aspect of
          Hindu philosophy.
 
        -  Ramanuja undertook major tours and travels around India and
          tirelessly propagated his philosophy, thereby far extending the reach
          of his organization. He not only developed theories, but also
          published philosophical texts and set up centers for the study of
          Vedanta, during the time between the 11th and 12th centuries.
 
        - The Acharya reformed the Ranganathaswamy Temple complex at Srirangam
          and also organized a network of temples dedicated to Vishnu-Lakshmi
          worship. His philosophy influenced several generations of poet saints
          to further the Bhakti movement.
 
        - The birthplace of Ramanujacharya houses a temple and an active
          Visishtadvaita school as well. His monastery and temple traditions are
          still followed the same way in the largest and most important
          Vaishnava centers, namely, the Ranganathaswamy Temple in Srirangam and
          the Venkateswara Temple in Tirumala, Tirupati.
 
      
      
      Common Features of All Schools of Vedanta
      In spite of the obvious differences that exist between all the schools of
      Vedanta, there are fundamental similarities and common features between
      them. They are as follows:
      
        - Brahman is the eternal, unchanging reality and the cause of the
          material world.
 
        - The Upanishads are a reliable source of knowledge. Vedanta is the
          pursuit of that knowledge, in order to understand Brahman.
 
        - Rebirth is a fact and being steeped in Vedanta is a way to attain
          jivan mukthi.
 
        - The Atman is responsible for its own acts and has to experience
          karma as a result of these acts.
 
        - The Advaita, Dvaita and Visishtadvaita schools of Vedanta rejected
          Buddhism, Jainism and many other Vedantic schools as well.