Examining all this one asks is it necessary to dream at all because it is very important not to dream; it is very important to have a mind that is completely quiet when you are asleep, then the whole mind, the whole brain, the whole body can rejuvenate itself. But if the brain goes on working, working while you are asleep, then it becomes exhausted, therefore neurotic, overstrained and all the rest of it. So is it possible not to dream at all?