are able to produce new sensations and diffused feelings in themselves which he regards as regressions to primordial, deeply buried mental states. He sees in them a physiological foundation, so to speak, of much of the wisdom of mysticism. There would be connections to be made here with many obscure modifications of mental life, such as trance and ecstasy. But I am moved to exclaim, in the words of Schiller’s diver: Who breathes overhead in the rose-tinted light may be glad! In my Future of an