The study of religion falls naturally and easily into two parts. The first is a question of origin. Under what conditions did the hypothesis that supernatural beings control the life of man come into existence? We know that in civilised times religious beliefs are in the nature of an inheritance. A member of any civilised society finds them here when he is born, he grows up with them, generally accepting them without question, or effecting certain modifications in the form in which he continues to hold them. If we treat religion as a hypothesis, advanced as other hypotheses are advanced, to account for a certain class of facts, then we can safely say that religion is one of the earliest in the history of human thought. And its antiquity and universality preclude us from seeking an explanation of its origin in the mental life of civilised humanity. Whether the religious hypothesis can or cannot be justified by an appeal to civilised intelligence, it is plain it did not begin there. Its beginnings are earlier than any existing civilisation; and in its most general form may be said to be as old as mankind itself. Consequently, if any satisfactory explanation of the origin of the religious idea is to be found, it must be sought amid the very earliest conditions of human society.
Now whatever the differences of opinion concerning matters of detail, there is substantial agreement amongst European anthropologists upon one important point. They all agree that the conception of supernatural, or 'spiritual,' beings owes its beginning to the ignorance of primitive man concerning both his own nature and the nature of the world around him. The
beginnings of human experience suggest questions that can only be satisfactorily answered by the accumulated experience of many generations. These questions do not materially differ from those that face men to-day. The why and wherefore of things are always with us; life propounds the same problem to all; it is the replies alone that vary, and the nature of these replies is determined by the knowledge at our disposal. The difference is not in nature but in man. The answers given by primitive man to these eternal questions are a complete inversion of those of his better informed descendants. The conception of natural force, of mechanical necessity, is as yet unborn, and the primitive thinker everywhere assumes the operation of personal beings as responsible for all that occurs. This is not so much the product of careful and elaborate philosophising, it is closer akin to the naive thinking of a child concerning a thunderstorm. Primitive thought accepts the universal operation of living and intelligent forces as an unquestionable fact. Modern thought tends more and more surely in the direction of regarding the universe as a complex of self-adjusting, non-conscious forces. Primitive thought assumes a supernatural agency as the cause of disease, and seeks, logically, to placate it by prayer or coerce it by magic. Modern thought turns to test-tube and microscope, searches for the malignant germ, and manufactures an antitoxin. The history of human thought is, as Huxley said, a record of the substitution of mechanical for vitalistic processes. The beginning of religion is found in connection with the latter. A genuine science commences with the emergence of the former.
With this aspect of the matter I have not, however, been specially concerned. It has been left on one side in order to concentrate attention upon another and a more neglected aspect of the subject—that of the conditions that have served to perpetuate the religious idea. Grant, what cannot be well denied in the face of modern investigation, that ideas of the supernatural began in primitive delusion. How comes it that this idea has not by now disappeared from civilised society? What are the causes that have given it such a lengthy lease of life? Experience has shown that all really verifiable knowledge counts as an asset of naturalism, and is so far opposed to supernaturalism. Moreover, the history of science has been such that one feels justified in the assumption that, given time and industry, there are no phenomena that are not susceptible to a naturalistic explanation. Why, then, has not supernaturalism died out? Even the religious idea cannot persist without evidence of some kind being offered in its behalf. This evidence may be to a better instructed mind inconclusive or irrelevant, but evidence of some sort there must have been all along, and must still be. Granted that the religious idea began with primitive mankind, granted also that it was based on a mistaken interpretation of natural phenomena, these reasons are quite insufficient to explain why thousands of generations later that idea is still with us. "Our fathers have told us" offers to the average mind a strong appeal, but surely the children will require some further proof than this. What kind of evidence is it that throughout the ages religious people have accepted as conclusive? A study of primitive psychology shows clearly enough how the religious idea vitalised
the facts. What we next have to discern is the class of facts that have kept the religious idea alive.
The foregoing pages constitute an attempt to answer this question. The need for some such investigation was clearly shown by the publication of the late Professor William James's Varieties of Religious Experience and its reception by the religious press of the country as an epoch-marking work. As a mere collection of documents, the work is interesting enough. But its critical value is extremely small. How religious visionaries have felt, or what has been their experiences, can only furnish the mere data of an enquiry, and their explanation of the cause of their experiences is a part of the data. This, apparently, Professor James overlooked; and it will be noted by critical readers of his book that it proceeds on the assumption that the statements of religious visionaries are to be taken, not only as true concerning their subjective experiences at a given time, but also as approximately true as to the causes of their mental states. This, of course, by no means follows. A scientific enquiry cannot separate mental conditions from the subject's interpretation of their causation. Whether this interpretation is genuine or not must be decided finally by an appeal to what is known of the laws of mental life, under both normal and abnormal conditions. If these are adequate to explain the "Varieties of Religious Experience," there is no need whatever to assume the operation of a supernatural agency. Nor does calling this agency 'transcendent' or 'supermundane' make any substantial difference. For, in this connection, these are only names that serve to disguise a visitant of a highly undesirable character.
The evidence on behalf of a naturalistic explanation of religious phenomena has been purposely stated in a suggestive rather than in an exhaustive manner. The main lines of evidence are threefold. First, there is the indisputable fact that in the lower stages of culture all mental and bodily diseases are universally attributed to spiritual agency. This explanation holds the field; it is the only one possible at the time, and it is not replaced until a comparatively late stage of human history. But of special importance is the fact that a belief does not die out suddenly. It is only destroyed very slowly, and even after the facts upon which the belief was originally based have been otherwise interpreted, the attitude of mind engendered by the long reign of a belief remains. It has by that time become part of the intellectual environment. Theories of a quasi-philosophic or quasi-scientific character are elaborated, and give to the original belief something of a rational air. Even to-day the extent to which superstitious practices still gather round the subject of disease is known only to the curious in such matters. Not that the original reason is given for the practice. In nearly every case a different one is invented. To take only a single example. We still find saffron tea largely used in cases of measles. All medical men are aware that it possesses not the slightest curative value. Students of folklore are aware that it has its origin in the theory of sympathetic cures. Its redeeming feature is that it is harmless; so we find it still in common use, and the recovery of a child from measles is often enough attributed to the potency of the concoction. So with the relation of disease to the persistence of the belief in the supernatural. The conclusion that
disease—whether bodily or mental—is due to the agency of spirits is one that follows from the existence of the religious idea; but in turn the observed facts react and strengthen the religious belief. Every case of disease becomes to the primitive mind an unanswerable proof in favour of the original hypothesis. The disease is there, and the only explanation possible is in terms of the animistic idea. And all the time the religious idea is becoming more deeply embedded in the social consciousness, more firmly established as a social fact.
The next line of evidence is that furnished by what I have called the culture of the supernatural. By some means or other—probably by accident in the first instance—it is discovered that certain herbs and vegetable drugs have a peculiar effect on one's mental state. Those who use them see or hear things other people do not normally hear or see. Abstention from food and other bodily privations produce similar results. What is the inevitable conclusion? The only one possible under the existing conditions is that communication has been set up with an invisible world from which one is shut off under normal conditions. From this to the next step is obvious and easy. If a drug, or a fast, brings one into communication with the supernatural world, one has only to repeat the conditions in order to repeat the experience. And repeated they are in all religions, with, at most, those modifications induced by changed times and circumstances. This is why fasting and other forms of 'fleshly mortification' play so large a part in the history of religion. The savage medicine man, the Hindu fakir, the medieval saint, all create their ecstasies by the simple plan of disturbing the normal operations of the nervous
system. It is not, of course, implied that this is done with a full consciousness of all that is involved in the practice. The derangement is to them the condition of the supernatural manifestation, not the physiological and psychological cause of the experience.