Ramakrishna Paramahamsa... propagated non-idol worship, harmony of all religions and the realization of Godhead as the ultimate mission of life itself... He had immense love for that Supreme Energy called God and he saw the Oneness in all existence... Swami Vivekananda...(was) one of the most influential Indian spiritual leaders propagating the philosophies of Vedanta and Yoga... he also brought about several reform movements in Hinduism... Guru Nanak Dev...was the founder of the religion called Sikhism and was the very first among the eleven Sikh Gurus... (He) laid a stress on keeping true faith in God and pursuing the path of good, which would lead one to God... Mahavira was the 24th and the final Tirthankara...of the religion, Jainism... Mahavira's philosophy, the aim of which was to elevate a human being spiritually, was made up of eight cardinal principles... In order to get out of this vicious circle, Mahavira said that it would be necessary to follow (these principles)...