28. And on account of difference of nature (they are) not like dreams.
Owing to the different nature of dream-cognitions, it cannot be said that, like them, the cognitions of the waking state also have no things to correspond to them. For dream-cognitions are originated by organs impaired by certain defects, such as drowsiness, and are moreover sublated by the cognitions of the waking state; while the cognitions of the waking state are of a contrary nature. There is thus no equality between the two sets.--Moreover, if all cognitions are empty of real content, you are unable to prove what you wish to prove since your inferential cognition also is devoid of true content. If, on the other hand, it be held to have a real content, then it follows that no cognition is devoid of such content; for all of them are alike cognitions, just like the inferential cognition.