The growing science of psychology has begun to turn its attention seriously to the study of the religious faculty. Several able men have set themselves to collect material which may form the basis of an inductive science. Personal experiences, communicated by many persons of both sexes and of various ages, occupations, and levels of culture, have been brought together and tabulated. It is claimed that important facts have already been established, particularly in connexion with the phenomena of conversion, by this method. The results have certainly been more than enough to justify confidence in the soundness of the method, and hope that the new science may have a great future before it. Towards mysticism, recent writers on the psychology of religion have been less favourable than the pure metaphysicians. While the latter have shown a tendency towards Pantheism and Determinism, which makes them sympathise with the general trend of speculative mysticism, psychology seems just at present to lean towards a pluralistic metaphysic and a belief in free-will or even in chance. This attitude is especially noticeable in the now famous Gifford Lectures of Professor William James[31] and in the recent volume of essays written at Oxford.[32] But even if the rising tide of neo-Kantianism should cause the speculative mystics to be regarded with disfavour, nothing can prevent the religion of the twentieth century from being mystical in type. The strongest wish of a vast number of earnest men and women to-day is for a basis of religious belief which shall rest, not upon tradition or external authority or historical evidence, but upon the ascertainable facts of human experience. The craving for immediacy, which we have seen to be characteristic of all mysticism, now takes the form of a desire to establish the validity of the God-consciousness as a normal part of the healthy inner life. We may perhaps venture to predict that the Christian biologist of the future will turn the Pauline Christology into his own dialect somewhat after the following fashion:--"The function of religion in the human race is closely analogous to, if not identical with, that of instinct in the lower animals. Religion is the racial will to live; not, however, to live anyhow and at all costs, but to live as human beings, conforming as far as possible to the highest type of humanity. Religion, therefore, acts as a higher instinct, inhibiting all self-destroying and race-destroying impulses in the interest of a larger self than the individual life." To turn this statement into theological form it is only necessary to claim that the "perfect man" which the religious instinct is trying to form is "the measure of the stature of the fulness of Christ," that that perfect humanity was once realised in the historical Christ, and that the higher instinct within us--ourselves, yet not ourselves--which makes for life and righteousness, and is the source of all the good that we