Separating as far as possible the descriptive from the metaphysical aspects of our subject, we may consider I. The Psychology of Religious Experience; and II. The Metaphysical Implicates of Religious Experience. Under the first head we shall find that the study of religious experience has been favourable to the Christian Faith in at least four respects.
I. The Psychology of Religious Experience
I. The scientific study of religion shows that religion belongs to the essence rather than the accidents of human nature. Man is the praying, the believing, and the hoping-to-survive animal. It is not the office of psychology to prove the existence of God, but it may show that belief in His existence is natural to man, and is favoured by natural selection. It may show that religious experiences have, in the words of James, "enormous biological worth,"[93] and that, to quote again the same writer, "the strenuous type of character will on the battle-field of human history always outwear the easy-going type, and religion will drive irreligion to the wall."[94]
One evidence of the normality of religious faith is the vacuum or sense of loss which continues to be felt in the life of those who have lost it. If we need God, as Augustine says, in order that the soul may live, it is natural that there should be a feeling of spiritual starvation without God. The two classical instances of this "aching void the world can never fill" are those of two well-known scientists, one writing in the eclipse, apparently permanent, of his faith, and the other after its restoration. Says W. K. Clifford: "Whether or no it be reasonable and satisfying to the conscience, it cannot be doubted that theistic belief is a comfort and a solace to those who hold it, and that the loss of it is a very painful loss.... We have seen the spring sun shine out of an empty heaven, to light up a soulless earth; we have felt with utter loneliness that the Great Companion is dead. Our children, it may be hoped, will know that sorrow only by the reflex light of a wondering compassion."[95] It is a sad consolation that children will be spared the loss, because they have not known the joy, of religious faith.
Romanes, during the eclipse of his faith, found that success, intellectual distraction, reputation and artistic pleasure were "all taken together and well sweetened to taste ... but as high confectionery to a starving man." He adds: "I take it then as unquestionably true that this whole negative side of the subject proves a vacuum in the soul of man which nothing can fill save faith in God."[96] Such modern instances show the normality of religion, and are an impressive commentary upon the words of the Psalmist, "My soul is athirst for God," and upon those of Augustine, "Our hearts are restless until they rest in Thee."
The normality of religion is further shown in the instinctive turning of the soul to God, or to some higher power, in times of crisis and danger. The religious consciousness is best interrogated, not in times of mechanical routine or worldly preoccupation, but in those moments when we seem to ourselves to be most religious, in moments of clearest insight, or of deepest emotion, or of some crisis in action. The story of one of the survivors of the Titanic disaster is in point:
"The second thing that stands out prominently in the emotions produced by the disaster is that in moments of urgent need men and women turn for help to something entirely outside themselves.... To those men standing on the top deck with the boats all lowered, and still more when the boats had all left, there came the realization that human resources were exhausted and human avenues of escape closed. With it came the appeal to whatever consciousness each had of a Power that had created the universe. After all, some Power had made the brilliant stars above ... had made each one of the passengers with ability to think and act, with the best proof, after all, of being created—knowledge of their own existence; and now, if at any time, was the time to appeal to that Power. When the boats had left and it was seen the ship was going down rapidly, men stood in groups on the deck engaged in prayer, and later, as some of them lay on the overturned collapsible boat, they repeated together over and over again the Lord's Prayer.... And this was not because it was a habit.... It must have been because each one ... saw laid bare his utter dependence on something that had made him and given him power to think.... Men do practical things in times like that: they would not waste a moment on mere words if those words were not an expression of the most intensely real conviction of which they were capable. Again, like the feeling of heroism, this appeal is innate and intuitive, and it certainly has its foundation on a knowledge—largely concealed, no doubt—of immortality. I think this must be obvious: there could be no other explanation of such a general sinking of all the emotions of the human mind expressed in a thousand different ways by a thousand different people in favour of this single appeal."[97]
The instinctive place and biological value of religion in human life, the restlessness and hunger of the soul without religion, show that it is not an excrescence upon human nature. The exclamation of a recent writer seems justified: "The age of scientific materialism is past.... The religious instinct has been adjudged normal."[98]
2. The study of religious experience has shown the power of religion (and certainly for the most part its power for good) in the life of the individual and of society. The psychologists have thrust upon our attention with unmistakable emphasis the fact of conversion, however they may theorize about the fact. The recorded experiences of saints, reformers and missionaries, the testimony collected by the questionnaires and the cases of conversion described in such books as Begbie's "Twice-Born Men" have shown beyond a peradventure that men can be born again. It only remains for the church to say, "Ye must be born again."