Sometimes, in his fever, he spoke aloud, but it was not satisfying; it seemed rather to hold back the natural development of the ideas. They flowed out through his mouth, and he was never sure whether they had been resolved in the right words. Words were much more alive and more difficult to handle, now; so much so that his wife did not seem to understand them when he used them. They slipped into his head like the wind blowing into a room, and extinguished the frail flame of an idea forming there in the dark. Less and less he used them in his thinking. The process became more mobile; he followed the course of thoughts because he was tied on behind. Often the way was vertiginous, but he could not let go. There was no repetition in the landscape; it was always new territory and the peril increased constantly. Slowly pitilessly, the number of dimensions was lessening. There were fewer directions in which to move. It was not a clear process, there was nothing definite about it so that he could say: "Now up is gone." Yet he had witnessed occasions when two different dimensions had deliberately, spitefully, merged their identities, as if to say to him: "Try and tell which is which."