For most of my life, I have been dismissive of both spirituality and religion. I say this to make clear the perspective and the starting point of this book, this search. No doubt, many of my readers will think of me as simpleminded, trying to recover what I should have learned had I been rightly raised in the matrix of religion, ritual, and belief. Others, my friends from the field of science and most of my political friends, will think that I am benighted, or perhaps something of a sell out, for giving up my lifelong down‐to‐earth scientific, and admittedly hyperrational way of thinking about things. But if the very idea of spirituality seemed to me to be contaminated by sectarian religion and by uncritical and antiscientific thinking, my view of life, which manifested in my becoming a philosopher (it did not come from philosophy) pointed to something else. Spirituality is not just organized religion. Nor is it antiscience, unnatural or supernatural. There is a naturalized spirituality that I have always had a glimpse of, and this is what I want to pursue in this book.