Interaction of the Soul and Body

Concerning the interaction between the soul and the body, or the operation of one into the other, and of one with the other, there are three opinions and traditions, which are hypotheses. The first is called Physical Influx, the second Spiritual Influx, and the third Pre-established Harmony. The first, which is called Physical Influx, is from the appearances of the senses and the fallacies therefrom, since it appears as if the objects of sight, which affect the eyes, flow into thought and produce it; in like manner that speech, which moves the ears, flows into the mind and introduces ideas there; and similarly with the senses of smell, taste, and touch. Since the organs of these senses first receive the impressions from contact with the world, and according as they are affected the mind appears to think and also to will; for this reason the ancient philosophers and scholastics believed that influx was derived from these organs into the soul, and thus they adopted the hypothesis of physical or natural influx.