“Imagination is not entirely untrammelled and free to move at will without any rules to constrain it. In fact, the contrary is true. Imagination travels according to habit. Imagination has choice, but it chooses according to habit. Awake or asleep, man's imagination is constrained to follow certain definite patterns. It is this benumbing influence of habit that man must change; if he does not, his dreams will fade under the paralysis of custom.”