(Sanskrit: breath or self) Basic concept in Hindu philosophy, describing that eternal core of the personality that survives death and transmigrates to a new life or is released from the bonds of existence. Atman became a central philosophical concept in the Upanishads. It underlies all aspects of personality, as Brahman underlies the working of the universe. The schools of Samkhya, Yoga, and Vedanta are particularly concerned with atman. See alsosoul.