In the Buddhist religion the Atman is the result of self-awareness in conjunction with the wisdom of a being, it is the most important quality in regard to the seven principles of man. In the Vedanta school of the Hindu religion the Atman refers to the true self of a person, according to the six schools of Hinduism each individual has Atman, which greatly differentiates it from the Buddhist religion.
The term Atman was first used in the Hindu-origin literatures found in Rig Veda RV X.97.11 (Sanskrit hymns). The ancient Indian grammarian Yaska described Atman in various ways; an organism that penetrates with the last sensible principle and other elements, penetrating principle.
According to the Upanishads (ancient Sanskrit books that have important philosophical concepts of Hinduism) the center of each person is not his body, neither his mind nor the ego, but the Atman is, this being the spirit of each living being, that is, his being deeper and inner, he is eternal and is at the deepest level of the existence of each individual.
The Brihadaranyaka Upanishad text gives a description of the Atman as that in which everything exists, which is the essence of everything, that is, a kind of superior soul, associated with everything that being is or can become, that is, desire., free will, good and evil in everyone.
The Katha Upanishad for its part describes it as the essence that transcends every human being or living being in general.
The main schools of Hinduism (Toga, Vaisesika, Nyaya, Samkhya, Mimamsa and Vedanta) accept the Atman as something that exists, in Jainism (Indian religion) this concept is also accepted, however it is seen from another perspective. Knowing Atman or self-knowledge is one of the main learning topics in the different schools of Hinduism, however each one differs in how it is considered. On the other hand, the Buddhist religion maintains that the Atman as a nucleus or something divine exists only in some human beings, thus denying the Hindu theory.
