Verse 19 — Once Removed, Ignorance Cannot Return

Once Maya (ignorance) is wholly destroyed by the valid means of knowledge given in scripture, how could she ever again produce her illusory effects? Since the Self is pure, non-dual knowledge itself, ignorance will not rise again. [Verse 19]

This verse answers a natural anxiety: "Suppose I gain knowledge — could ignorance relapse later, like a cancer returning? If so, wouldn't I need ongoing ritual as insurance?" Ram's answer: no — ignorance, once removed, has nowhere to come back from.

Two clarifications carried over from Verse 18

Before the main argument, two quiet but important points:

Knowledge needs the mind — it does not "transcend" it. Self-knowledge arises in a qualified mind. If you abandoned the mind entirely, there would be nowhere for the knowledge to dawn.
Knowledge comes through the scripture (shastra pramana) — through systematic teaching — not merely by sitting under a tree repeating "who am I?"

Why ignorance cannot be reborn

The argument is pure logic. For ignorance to return, it would need a source. Consider every possibility:

Could ignorance be reborn from...?	Verdict
...itself?	No — it has already been destroyed; the destroyed cannot produce anything
...the individual?	No — one cannot produce oneself
...Brahman / the Self?	No — Brahman is pure, non-dual awareness; it is not the cause of ignorance

With no possible source, ignorance simply cannot re-arise.

flowchart TD
    A[Ignorance destroyed by knowledge] --> B{Any source for it<br/>to return from?}
    B -->|from itself?| C[No — already gone]
    B -->|from the Self?| D[No — pure, non-dual]
    B -->|from the world?| E[No — the world was its effect]
    C --> F[Ignorance cannot return]
    D --> F
    E --> F

The rope and the snake

The classic image makes it vivid:

In dim light you mistake a coiled rope for a snake, and you tremble. Bring a lamp, and you see clearly: it is a rope. Now — can the snake ever come back? There was never a snake to return; there was only misperception, and clear seeing has ended it for good.

The confusion	The clarity
Rope seen as snake	Rope seen as rope
Self mistaken as limited doer/enjoyer	Self known as pure awareness
Fear, bondage	Freedom

Just as clear light leaves no room for the snake to reappear, clear knowledge leaves no room for self-ignorance — and therefore none for the doership, action, and bondage that grew out of it.

Key idea. Because destroyed ignorance cannot return, no "maintenance ritual" is required to keep it away. This removes the objector's last excuse for combining action with knowledge.

Verse 20 states the conclusion of this thread outright: knowledge is independent and needs nothing else.