From the Preface: This work is intended primarily as a handbook for beginners in the psychological analysis of religion. The foremost concern, therefore, has been to make clear the nature of the problems, the kinds of data, the methods of research, and the achieved results. The justification for attempting such a handbook lies partly in the inherent difficulty of analyzing religious experience, and partly in conditions that grow out of the extreme youth of the psychology of religion. We are still in the beginnings-plural-of this enterprise.