Prana

Life-breath — the vital principle whose presence in a subtle body is what makes a name-and-form a living being rather than an inert object.

Overview

Vedantic psychology distinguishes living from non-living not by the presence of sat (which is everywhere) or chit (which is also everywhere as ground), but by the presence of a subtle body capable of borrowing consciousness. Prana is the first and most basic component of that subtle body. A rock has sat — it is. But it has no prana, no subtle body, and so no inner life. A person has sat, and also prana, and therefore has the subtle body through which chidabhasa can manifest as first-person awareness.

Prana is not simply breath, though breathing is its most visible expression. In the Upanishads it is sometimes treated as the vital principle of the universe (the Prashna Upanishad is devoted to it). In the pancha-kosha model it is the pranamaya-kosha — the vital sheath — lying between the food sheath (physical) and the mental sheath.

The AI question in Ep 6 turns on this: could a machine become conscious? The Vedantic answer is formal — if you can engineer a subtle body (of which prana is the root component), consciousness will manifest in it; because chit is always present as the ground, what’s needed is a reflector for chit to shine on.

Related concepts

• sukshma-sharira — prana is its root component
• jiva — prana is part of what makes jivatva possible
• sat — everything has sat; only some things have prana
• chit — borrowed via chidabhasa in bodies that have prana (red link)
• pranamaya-kosha — the sheath named for it (red link)
• sat-chit-ananda — prana is not itself any of these; it is a vehicle

In the Gita

• 02-18 — implicit in the distinction between bodies that die and atman that does not.

Lecture evidence

• Ep. 6 [73:34]: Prana named as the term for “living” — its presence in the subtle body distinguishes living from non-living.
• Ep. 6 [75:35]: The AI question — consciousness in a machine requires a subtle body; if one could be engineered, chit would manifest through it.