"Because a dream is a creation. Of course, wakefulness may be a creation: part of our solipsism and so on. But you don’t think of it in that way. In the case of a dream, you know that all that comes from yourself, whereas, in the case of a waking experience, many things come to you that don’t come out of yourself, unless you believe in solipsism. Then you are the dreamer all the time, whether waking or sleeping. O don’t believe in solipsism. I don’t suppose anybody really does. The essential difference between the waking experience and the sleeping or dreaming experience must lie in the fact, that the dreaming experience is something that can be begotten by you, created by you, evolved out of you."