"If there is something tonight that you really desire in this world, then experience in your imagination what you would experience in the flesh if you realized your goal, and then Close your ears and eyes to everything that denies the reality of your assumption."
Neville, 1948
Man, assuming the feeling of his fulfilled desire, changes his future in harmony with his assumption, because an assumption, though false, if sustained is consolidated into fact.
The undisciplined mind finds it difficult to assume a state that is denied by the senses. But the ancient masters discovered that sleep, or a sleep-like state, helped man create his assumptions. Therefore they represented man's first creative act as one in which man was in a deep sleep.
This not only sets the pattern for all future creative acts, but shows us that man has only one substance truly his own to use in creating his world, and that is himself.