Since my subject is not the splendor of historic sanctity but the normal life of the Spirit, as it may be and is lived in the here-and-now, I have done my best to describe the character and meaning of this life in the ordinary terms of present day thought, and with little or no use of the technical language of mysticism. For the same reason, no attention has been given to those abnormal experiences and states of consciousness, which, too often regarded as specially "mystical," are now recognized by all competent students as representing the unfortunate accidents rather than the abiding substance of spirituality. Readers of these pages will find nothing about trances, Ecstasies and other rare psychic phenomena; which sometimes indicate holiness, and sometimes only disease. For information on these matters they must go to larger and more technical works. My aim here is the more general one, of indicating first the characteristic experiences--discoverable within all great religions--which justify or are fundamental to the spiritual life, and the way in which these experiences may be accommodated to the world-view of the modern man: and next, the nature of that spiritual life as it appears in human history. The succeeding sections of the book treat in some detail the light cast on spiritual problems by mental analysis--a process which need not necessarily be conducted from the standpoint of a degraded materialism--and by recent work on the psychology of autistic thought and of suggestion. These investigations have a practical interest for every man who desires to be the "captain of his soul." The relation in which institutional religion does or should stand to the spiritual life is also in part a matter for psychology; which is here called upon to deal with the religious aspect of the social instincts, and the problems surrounding symbols and cults. These chapters lead up to a discussion of the personal aspect of the spiritual life, its curve of growth, characters and activities; and a further section suggests some ways in which educationists might promote the up springing of this life in the young. Finally, the last chapter attempts to place the fact of the life of the Spirit in its relation to the social order, and to indicate some of the results which might follow upon its healthy corporate development. It is superfluous to point out that each of these subjects needs, at least, a volume to itself: and to some of them I shall hope to return in the future. Their treatment in the present work is necessarily fragmentary and suggestive; and is intended rather to stimulate thought, than to offer solutions.