Pursuing every thought to the root

To end thought I have first to go into the mechanism of thinking. I have to understand thought completely, deep down in me.

I have to examine every thought, without letting one thought escape without being fully understood, so that the brain, the mind, the whole being becomes very attentive.

The moment I pursue every thought to the root, to the end completely, I will see that thought ends by itself. I do not have to do anything about it because thought is memory. Memory is the mark of experience; and as long as experience is not fully, completely, totally understood, it leaves a mark. The moment I have experienced completely, the experience leaves no mark.

So if we go into every thought and see where the mark is and remain with that mark as a fact—then that fact will open and that fact will end that particular process of thinking, so that every thought, every feeling is understood.

Krishnamurti on Education, pp 119-120