A living human body is not the same thing as a corpse. Now the soul is the difference between a corpse and a living being. A dead body cannot move, eat, think, express itself, enjoy, or be miserable. It can but fall to pieces and go back to dust. There is something that stops your body from doing that now. It is your soul. For every activity you must find a principle of operation behind it. The principle in a man which thinks and loves, and is happy or miserable, is a very real thing. It is not nothing, less than the very body it animates. Nor is it a chemical. No doctor, examining a corpse, can tell you what chemical is missing that it should not live. If there be nothing else save chemical substances, let doctors and scientists gather together the requisite chemicals and say, “Live!” They can effect nothing like this. There is something that chemistry cannot reach; it is the soul or spirit. Look anyone in the face, and behind those animated features, those changing expressions, in the very eyes, you will read the soul.
Existence and nature of the soul, Question 27 from Radio Replies Volume I Copyright © 1938 (by Rev. Dr. Leslie Rumble, M.S.C. and Rev. Charles Mortimer Carty).