As no outward motion or change, when normal, in man's external body can take place unless provoked by an inward impulse, given through one of the three functions named, so with the external or manifested Universe.
It is, then, by those shadows of the hoary Past and their fantastic silhouettes on the external screen of every religion and philosophy, that we can, by checking them as we go along, and comparing them, trace out finally the body that produced them.
We see that every external motion, act, gesture, whether voluntary or mechanical, organic or mental, is produced and preceded by internal feeling or emotion, will or volition, and thought or mind.