US-P18.161ab ।US-P18.161cd ॥
In plain words
Here the thought that fails to discriminate is dispelled by clear discernment. If the mistaken thought could overturn that discernment instead, no reality could be established, because the means of knowledge would have lost its authority.
Close to the Sanskrit
Here the non-discriminating cognition is set aside by a discriminating cognition. If the reverse occurred, everything would end in non-existence, because the means of knowledge would lose its validity.