The story tells that when man was created first the soul was unwilling to enter the body, saying, "This is a prison, it is dark, and I have always been free." Then God commanded the angels to sing. When they sang, the soul was in such an ecstasy that it entered the body, not knowing where it was going. By music, also, it can be freed from the physical consciousness. The mother's voice, when she says, "Sleep, sleep," puts the child to sleep, and her voice awakens it again.