One goes round and round on the dialectical merry-go-round. Thoughts lead to thoughts which lead to more thoughts, including inconclusive thoughts, semantically indeterminate thoughts, mutually contradictory thoughts. Words beget words unto endlessness. On the side of the subject one never penetrates to the source of thoughts. And on the side of the object one never arrives at the root of the real.
I would understand subjectivity and existence. But I am stymied by the infirmity of reason.