US-P16.032ab ।US-P16.032cd ॥
In plain words
That which reveals absence must itself exist; if it did not, people would remain entirely unaware of both presence and absence, and such ignorance is unacceptable.
Close to the Sanskrit
That by which non-existence is known, that must be existent; if that were not, there would be unawareness of existence and non-existence for the world, and that is not accepted.