Asat

In Shankara’s commentary on 02-16, “asat” means the false — that is, mithya. (Elsewhere in Vedanta “asat” can mean the absolutely non-existent, like a square circle — not the sense used here.)

Overview

The word asat has two senses in Vedanta, and Swami Sarvapriyananda flags the difference explicitly, because confusing them leads readers to misunderstand the verse.

• In standard Vedantic textbooks, asat means the absolutely unreal: the son of a barren woman, a square circle — something that does not exist and can never appear.
• In Shankara’s Gita commentary on 2.16, however, asat is used in a broader, non-technical sense to mean the false or the apparent — what Vedanta more precisely calls mithya.

The reason this matters: verse 2.16 says “asat has no real being, sat never ceases to be.” If you plug in the textbook meaning of asat, the verse is a tautology — of course what can never exist, never exists. Reading asat as mithya, the verse becomes substantive: the entire world of names and forms, which appears to exist, has no real being; only sat does.

This reading sets up the whole Advaita program: the world is real in a qualified sense (as appearance), but it is not sat — it borrows its being from Brahman.

Related concepts

• sat — its counterpart in the verse
• mithya — what asat means here in Shankara’s usage
• nama-rupa — the content of what is “asat” in the verse’s sense
• maya — the power that produces asat-as-mithya

In the Gita

• 02-16 — nasato vidyate bhavo — “the unreal has no being”

Lecture evidence

• Ep. 5 [22:07]: Swami flags that in 2.16 “asat” does not mean the textbook “absolutely unreal” (square circle); it means the false — that is, mithya.