The puzzles that remain

Abstract

I want to begin by thanking everyone for engaging so seriously with my material. This is a group of great intellectual capacity and scholarship. I am deeply honored by their care. Most of the writers are friends and, for many years, we have struggled together to understand the nature of spiritual experience and the difference between spiritual experience and madness. As I would expect, they have identified important questions raised by the research and laid down an ambitious research agenda for where we need to go next. There is so much we do not yet know and so much more to do. I hope that we will be together on the journey.