। ॥ २९२ ॥
In plain words
They take their own Self for something other, and the Supreme Self for something else again — and so the learned go back to hunting for their own Self outside, among the sheaths.
Close to the Sanskrit
Having thought one's own Self to be other, and the Supreme Self to be something else again, one's own Self is then searched for once more, outside, in the sheaths, by the learned.