When considering the idea of dreams, one finds, that although it is something which is known to everybody, this subject leads to the deeper side of life. Because it is from dreams that one begins to realize two things; one is that something is active when the body is asleep. And to the deep thinker this gives faith in the life hereafter. For this gives the proof that when the body is not active, even then the person is active, and he seems to be no less so than in the physical body.