Indian sages discovered the Infinite Brahman and devised various yogic disciplines to reach him. The main condition was to give up life. Sri Aurobindo was shown by Swami Vivekananda that that Infinite Brahman can descend on human life. In a world where rationality is not yet the ruling force, Sri Aurobindo saw that Man can evolve into the next species, the Supramental Being, if twelve yogis attained the supramental consciousness. In their absence, He decided to achieve that goal by working in the subtle plane. He left the body in 1950 and achieved His goal in 1956.