During the course of my last exchange with reader Henry on the Jamesian "will to believe" and related notions, I admitted that I had not done justice to the argument James is making in the final pages of VARIETIES OF RELIGIOUS EXPERIENCE, and I promised to try again on another day. So this may as well be the day. The material I have in mind begins in a minor key, in the middle of a chapter (Lecture XIX) unpretentiously titled "Other Characteristics." James had promised to treat of manifestations of religions his previous 18 lectures had neglected, and he had begun with its aesthetics, moving on to the practice and experience of prayer. Then he says, "The last aspect of religious life which remains for me to touch upon is the fact that its manifestations so frequently connect themselves with the subconscious part of our existence." He means by "the subconscious part" what we in the early 21st century more often call the "subliminal,...