The work of the soul is to know and to see, and the work of the mind and body is to act as a magnifying glass for it. Yet they in their turn also see and hear what is external to them, as the consciousness works through them also. The soul sees the play of thought in the mind; the mind perceives the pains and sensations of the body; the body is conscious of heat, cold, and touch. Its consciousness may be seen when something is accidentally about to fall on it; before the mind can think of a plan for safety, the exposed part of the body instantly contrives its escape.