US-P18.064ab ।US-P18.064cd ॥
In plain words
There is that in which awareness shines, and awareness whose shining it is. Because those two are never told apart, the whole world says, quite naturally, "he knows" — and calls knowing an action.
Close to the Sanskrit
But where there is the reflection, and of whom that reflection is — precisely from the non-discrimination of those two, all the world speaks, naturally, of the action 'he knows'.