The words "waking" and "sleeping" are familiar to us as we use them in expressing different conditions of life. Really speaking, when we look at it from the point of view of the soul, we sleep and are awake at the same time. For instance when we are looking at a certain thing and our mind is fully absorbed in looking at it, we do not hear things at the same time. And if we are hearing something, absorbed in what we are hearing, when our sense of hearing is focused, our eyes may be open and yet we are not seeing. If that is true it explains to us that when one sense is fully awakened the other senses are asleep. In the same way, when we experience a sensation through the mind the body is absent.