These researches have continued vigorously, especially in Amer ica and France. Pratt's Religious Consciousness (1921) repre sents the matured result of the movement started by James. Considerable advance has been made towards the correlation and better understanding of such types as the prophet, visionary and religious revivalist, in all of whom a strong mystical impulse is commonly at work. The hostile study of mysticism from the psychological standpoint has its chief exponent in J. H. Leuba, and to some extent in the work of experimental psychologists such as P. Janet, whilst an approach midway between the philosophical and psychological is provided by Bucke's Cosmic Consciousness, a curious work which has exercised considerable influence. Dela croix's sympathetic but penetrating analyses of the evolution of the great mystics have shed much light on the psychological char acteristics of religious genius. Valuable studies of the nature of mystical contemplation, and restatement in modern terms of its processes, have been produced by Roman Catholic scholars, the best being those of Pere Poulain, S.J.
The changed outlook of physical science, the new understand ing of its limitations and the marked revolt from 19th-century materialism, have brought about a rapprochement between mysti cism and philosophy. Inge's Philosophy of Plotinus (1918) and Otto's widely discussed essay Das Heilige (The Idea of the Holy, 1924) show different aspects of the reaction of philosophy to mys ticism. But this is also felt in the pure metaphysics of Wittgen stein, and in the inimical attitude of Croce and his school. The greatest and ultimately most influential expositions of the place of mysticism in theistic philosophy, and its limitations and right ful relation with other aspects of knowledge, are Von 1E:Tel's Mystical Element of Religion and Eternal Life. These books have
affected all modern religious thinkers, and may provide the start ing-point of a critical realism harmonising the mystical, moral and intellectual approaches to reality. In America, Hocking's Meaning of God in Human Experience is probably the most important philosophic contribution to this subject.
The revived interest in mysticism has had popular results in several directions. It has seemed to endorse the shallow eclec ticism in which many escape the difficulties of belief. Its super ficial peculiarities have been exploited by theosophists and other apostles of eccentric religiosity. It has produced numerous bas tard cults, mostly hailing from America though often wearing Oriental disguise; cults mainly compounded of pantheism, quiet ism and crude autosuggestion, and offering a "mystical religion" to those seeking a spiritual home full of modern conveniences and devoid of discipline. On the other hand, its spirit has affected for good the literature and activity of the organised Churches; shifting the emphasis from tradition to experience, and bringing back into focus those mysterious realities which religious symbols and institutions seek to express.