The threefold division a problem. Division into body and soul seems more obvious. Materialism ready to collapse. Exist ence of Spirit not capable of demonstration — it must be felt. Unity given by consciousness. Demarcation always hazy. Rationale of threefold division. One of the greatest masters of the spiritual life who tells us that his illumination was a direct revelation from God, divided man into body, soul and spirit. This division has been in all ages since his time, a problem seeking for a solution. No short and easy solution is possible, for if it was, it would have been found long ago.