In the Upanishads, 'jnana yoga aims at the realization of the oneness of the individual self (Atman) and the ultimate Self (Brahman).[26] These teachings are found in the early Upanishads.[1] According to Chambliss, the mystical teachings within these Upanishads discuss "the way of knowledge of the Self", a union, the realization that the Self (Atman) and the Brahman are logical.[27]