I wish to write a book about the fundamentals of that which we usually call ‘religion’. Not about the varieties and peculiarities of individual ‘religious experience’; for these varieties and peculiarities seem to me to receive a degree of detailed attention entirely out of proportion to their importance. Hundreds of students of ‘religious psychology’ can now pass an examination in the phenomena of conversion or the degrees of prayer; but few have anything solid to say about that view of reality which the fact of conversion and practice of prayer require of us, and without which these things are meaningless.