There has been of late a new interest in Mysticism, itself a border-land word, strangely difficult of definition yet meaning generally the persuasion that through certain spiritual disciplines--commonly called the mystic way--we may come into a first-hand knowledge of God and the spiritual order, in no sense dependent upon reason or sense testimony. Some modern movements are akin to mysticism but they cannot all be fairly included in any history of mysticism. Neither can they be included in any history of Christianity; some of them completely ignore the Christian religion; some of them press less central aspects of it out of all proportion; one of them undertakes to recast Christianity in its own moulds but certainly gives it a quality in so dealing with it which cannot be supported by any critical examination of the Gospels or considered as the logical development of Christian dogma. Here are really new adventures in religion with new gospels, new prophets and new creeds. They need to be twice approached, once through an examination of those things which are fundamental in religion itself, for they have behind them the power of what one may call the religious urge, and they will ultimately stand as they meet, with a measure of finality, those needs of the soul of which religion has always been the expression, or fall as they fail to meet them. But since some limitation or other in the types of Christianity which are dominant amongst us has given them their opportunity they must also be approached through some consideration of the Christianity against which they have reacted. Unsatisfied needs of the inner life have unlocked the doors through which they have made their abundant entry. Since they also reflect, as religion always reflects, contemporaneous movements in Philosophy, Science, Ethics and Social Relationship, they cannot be understood without some consideration of the forces under whose strong impact inherited faiths have, during the last half century, been slowly breaking down, and in answer to whose suggestions faith has been taking a new form. A rewarding approach, then, to Modern Religious Cults and Movements must necessarily move along a wide front, and a certain amount of patience and faith is asked of the reader in the opening chapters of this book: patience enough to follow through the discussion of general principles, and faith enough to believe that such a discussion will in the end contribute to the practical understanding of movements with which we are all more or less familiar, and by which we are all more or less affected. G.G.A. _Detroit, Michigan._ Contents I. FORMS AND BACKGROUNDS OF INHERITED CHRISTIANITY 13