IV. Body, Soul and Spirit

In the life-body we still have something external to man. With the first stirrings of sensation the inner self responds to the stimuli of the outer world. You may trace ever so far what one is justified in calling the outer world, but you will not be able to find sensation. Rays of light stream into the eye, penetrating it till they reach the retina. There they call forth chemical processes (in the so-called visual-purple); the effect of these stimuli is passed on through the optic nerve to the brain where further physical processes arise. Could one observe these, one would simply see physical processes, just as elsewhere in the physical world. If I were able to observe the ether-body, I should see how the physical brain-process is at the same time a life-process. But the sensation of blue colour, which the recipient of the rays of light has, I can find nowhere in this manner. It arises only within the soul of the recipient. If, therefore, the being of this recipient consisted only of the physical body and the ether-body, sensation could not exist. The activity by which sensation becomes a fact differs essentially from the operations of the formative life-force. It is an activity by which an inner experience is called forth from these operations. Without this activity there would be a mere life-process, such as is to be observed in plants. If one pictures a man receiving impressions from all sides, one must think of him at the same time as the source of the above-mentioned soul-activity which flows out from him to all the directions from which he is receiving the impressions. In all directions soul-sensations arise in response to the physical impacts. This fountain of activity shall be called the sentient soul. This sentient soul is just as real as the physical body. If a man stands before me, and I disregard his sentient soul by thinking of him as merely a physical body, it is exactly as if I were to call up in my mind, instead of a painting—merely the canvas.