। ॥ ५२० ॥
In plain words
This inquiry is laid out for one purpose: viveka — telling the Self from what is not the Self. Through it the truth of both stands cleanly apart, and comes plainly into view.
Close to the Sanskrit
For the sake of discrimination between the Self and the non-Self, this discussion is set forth, by which the truth of the Self and the non-Self, held apart, becomes fully evident.