X PSYCHOTHERAPY : SCIENTIFIC AND RELIGIOUS
opportunity of seeing its development from the first beginnings of his interest in the subject, and of knowing how much detailed labour lies behind his pages. Dr. M. Gregory is undoubtedly an enthusiast, but his enthusiasm is the kind of enthusiasm that makes for good and careful scientific work, and not for hasty acceptance of evidence or for jumping at unfounded conclusions.
The whole subject is one which bristles with difficulties. There is the problem, an urgent one in practice, of the unqualified or semi-qualified practitioner. Many of the clergy to-day are necessarily being drawn into the field of a partly responsible psychotherapy by the daily exigencies of their pastoral work, and many doctors find themselves equally necessarily led beyond the strict limits of ordinary medical practice into regions that may properly be called spiritual. The question of possible co-operation is a pressing one. There is the very different but equally urgent problem of the interpretation of all the complex evidence of what is commonly (though improperly) called spiritual healing, from the miracles recorded in the New Testament to those of healing missions and movements to-day. But behind both these problems and others of the same kind there lies the deeper problem of the real relationship between the mental and the spiritual, and of the interaction of both with the physical body, whose importance is apt to intrude itself upon us with such insistence. I hope that readers of Dr. M. Gregory's book will keep this special problem in view throughout, for it is only by doing so that they will get the full value of the great amount of evidence that he has brought together and of the theories which he expounds.