Fact and Fable in Psychology. Joseph Jastrow

a true jewel lies buried, that the wonderful cures and the practical success of these various systems indicate their dependence upon an essential and valuable factor in the cure of disease and the formation of habits, it is possible with reservation to assent, and with emphasis to demur. Such success, in so far as it is rightly reported, exemplifies the truly remarkable function of the mental factor in the control of normal as of disordered physiological functions. This truth has been recognized and utilized in unobtrusive ways for many generations, and within recent years has received substantial elaboration from carefully conducted experiments and observations. Specifically, the therapeutic action of suggestion, both in its more usual forms and as hypnotic suggestion, has shown to what unexpected extent such action may proceed in susceptible individuals. The well-informed and capable physician requires no instruction on this point; his medical education furnishes him with the means of determining the symptoms of true organic disorder, of functional derangement, and of the modifications of these under the more or less unconscious interference of an unfortunate nervous system. It is quite as human for the physician as for other mortals to err; and there is doubtless as wide a range among them, as among other pursuits, of ability, tact, and insight. "But when all is said and done," the fundamental fact remains that the utilization of the mental factor in the alleviation of disease will be best administered by those who are specifically trained in the knowledge of bodily and of mental symptoms of disease. Such application of an established scientific principle may prove to be a jewel of worth in the hands of him who knows how to cut and set it. The difference between truth and error, between science and superstition, between what is beneficent to mankind and what is pernicious, frequently lies in the interpretation and the spirit as much as, or more than, in the fact. The utilization of mental influences in health and disease becomes the one or the other according to the wisdom and the truth and the insight into the real relations of things, that guide its application. As far removed as chemistry from alchemy, as astronomy from astrology, as the doctrine of the localization of function in the brain from phrenology, as hypnotic suggestion from animal magnetism, are the crude and perverse notions of Christian Scientist or Metaphysical Healer removed from the rational application of the influence of the mind over the body.

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      The growth and development of the occult presents an interesting problem in the psychology of belief. The motives that induce the will to believe in the several doctrines that have been passed in review are certainly not more easy to detect and to describe than would be the case in reference to the many other general problems—philosophical, scientific, religious, social, political, or educational—on which the right to an opinion is accepted as an inalienable heritage of humanity or at least of democracy. Professor James tells us that often "our faith is faith in some one else's faith, and in the greatest matters this is most the case." Certainly the waves of popularity of one cult and another reflect the potent influence of contagion in the formation of opinion and the guidance of conduct. When we look upon the popular delusions of the past through the achromatic glasses which historical remoteness from present conditions enables us to adjust to our eyes, we marvel that good and great men could have been so grossly misled, that obvious relations and fallacies could have been so stupidly overlooked, that worthless and prejudiced evidence could have been accepted as sound and significant. But the opinions to which we incline are all colored o'er with the deep tinge of emotional reality, which is the living expression of our interest in them or our inclination toward them. What they require is a more vigorous infusion of the pale cast of thought; for the problem of the occult and the temptations to belief which it holds out are such as can be met only by a sturdy application of a critical logic. Only as logical thoroughness comes to prevail over superficial plausibility, as beliefs come to be formed and evidence estimated according to their intrinsic value rather than according to their emotional acceptability, will the propagandum of the occult meet with greater resistance and aversion.

      

      The fixation of belief proceeds under the influence both of general and of special forces; the formation of a belief is at once a personal and a social reaction—a reaction to the evidence which recorded and personal experiences present, and to the current beliefs of our environment. To an equal extent is the reaction determined by the temperament of the reagent. And although the resulting individual beliefs, however complex, are not matters of chance nor are their causes altogether past finding out, yet some of their contributing factors are so vague and so inaccessible that they are most profitably considered as specific results of more or less clearly discerned general principles; and in many respects there is more valid interest in the general principles than in the particular results. It is interesting, and it may be profitable, to investigate why this area is wooded with oak and that with maple, but it is somewhat idle to speculate why this particular tree happens to be a maple rather than an oak, even if it chances to stand on our own property, and to have an interest to us beyond all other trees.

      Among the more tangible tendencies that in various ways lead to the occult there is distinguishable what may be termed the intensely personal temperament,—the mental attitude that absorbs knowledge only when dissolved in an all-pervading personal medium; the attitude that finds a paramount significance in the personal interpretation of experiences, and reacts to massive and extensive generalizations most vaguely and impotently; the attitude that offers a weak and verbal assent to scientific principles and to the realities of nature, but inwardly cherishes an intense belief in the personal purport of the order of events, and earnestly seeks for a precise explanation of individual happenings. "The chronic belief of mankind," says Professor James, "that events may happen for the sake of their personal significance is an abomination." It is this chronic mental habit that broods upon the problem of subjective experiences, and is ready to recognize in signs and omens the guiding principle of rationality; not that this is always done designedly and superstitiously, but the underlying bent obscures the consideration of experience in any other than a personal light, and obstructs that illumination of the concrete by the generic, which constitutes an indispensable factor in the growth of wholesome thought. The victim of this unfortunate habit will remain logically unfit to survive the struggle against the occult. Only in so far as he succeeds in getting away from his personal perspective will he be able to appreciate the true status of the problem which enlists his interest. Above all is it necessary to subordinate explicit individual explanations to the general illumination of well-established principles. It may be interesting to note that the partaking of mince-pie at evening induces bad dreams, but it is hardly profitable to speculate deeply why my dream took the form of a leering demon with the impolite habit of squatting on my chest. The stuff that dreams are made of is not susceptible of that type of analysis. The most generous allowance must be made for coincidences and irrelevancies, and it must be constantly remembered that the obscure phenomena of psychology, and, indeed, the phenomena of more thoroughly established and intrinsically more definite sciences, cannot be expected to pass the test of detailed and concrete combinations of circumstances. In other classes of knowledge the temptation to demand such explicit explanations of observations and experiences is not so strong, because of the absence of an equally strong personal interest; but clearly this does not affect the logical status of the problem.

      The reply to this argument I can readily anticipate; and I confess that my admiration of Hamlet is somewhat dulled by reason of that ill-advised remark to Horatio about there being more things in heaven and earth than are dreamt of in our philosophies. The occultist always seizes upon that citation to refute the scientist. He prints it as his motto on his books and journals, and regards it as a slow poison that will in time effect the destruction of the rabble of scientists, and reveal the truth of his own Psycho-Harmonic Science or Heliocentric Astrology. It is one thing to be open-minded, and to realize the incompleteness of scientific knowledge, and to appreciate how often what was ignored by one generation has become the science of the next; and it is a very different thing to be impressed with coincidences and dreams and premonitions, and to regard them as giving the keynote to the conceptions of nature and reality, and to look upon science as a misdirected effort. Such differences of attitude depend frequently upon a difference of temperament as well as upon intellectual discernment. The man or the woman who flies to the things not dreamt of in