US-P18.199ab सत्यमेवमनात्मार्थे वाक्यात् पारोक्षबोधनम् ।US-P18.199cd प्रत्यगात्मनि न त्वेवं संह्याप्राप्तिवदध्रुवम् ॥
In plain words
That is indeed how a sentence produces indirect knowledge regarding an external object; but not so with the inner Self, for treating it as distant is like failing to reach what is already yours, leaving the knowledge unstable.
Close to the Sanskrit
True it is thus regarding an object of the non-self, indirect cognition from a sentence; in the inner self not thus, because it is like non-attainment, uncertain.