Tat Tvam Asi

“That thou art” — the mahavakya asserting the identity of the individual self with the absolute.

Overview

Tat points to brahman; tvam points to the atman at the core of the hearer; asi (“art”) is the assertion of identity. Tat tvam asi is one of the four great mahavakyas of the Upanishads and the condensed form of the whole Advaita teaching: the absolute reality and the self within you are not two.

The force of tat tvam asi is that it is not a prescription to become something, but a pointer to what already is. What appears as a “you” with a body and mind is, in its real nature, the same one reality that everything else borrows its existence from. Swami Sarvapriyananda treats 02-16 as the verse where Krishna sets up this identity with full rigor.

Related concepts

• brahman — the tat side of the equation
• atman — the tvam side
• sat-chit-ananda — the nature shared by both
• advaita-vedanta — the school built around this identity
• upanishads — where the mahavakyas originate

In the Gita

• 02-11-12 — immortality of the self, first statement
• 02-16 — the full philosophical argument for the identity

Lecture evidence

• Ep. 3 [~30:00]: Swami links the verse 2.12 teaching (“never a time when any did not exist”) to the Upanishadic identity tat tvam asi.
• Ep. 5 [05:20]: Ramakrishna’s one-sentence summary — “Brahman is real, the world is an appearance” — completed by jivo brahmaiva naparah, “you are none other than that.”