US-P19.013ab ।US-P19.013cd ॥
In plain words
Nor can any mental projection exist without a basis, so the Self is not an absolute void. That imagination of yours arises from a source that was already there before it, and therefore that source cannot itself be something imagined.
Close to the Sanskrit
Imagination also cannot exist in the absence of a basis. Thus there is something existent other than it; there is no absolute non-existence. That from which your imagination proceeds is established prior to it and is not itself imagined.