(this was originally a Facebook comment on a thread between David Gill and Wa Da Ta)
I agree that there's plenty of interest in comparing the two, since Dick was plugging into a lotta post-Cayce New Age ideas about tapping into the unconscious using "channeling" type techniques. Like for instance the time recounted in the letters when he was high and called Tessa, told her to ask him anything since he had access to his unconscious. Sure he was skeptical, but he was able to suspend that skepticism in a way that skeptics are very uncomfortable about. Unfortunately, much of what is written about Cayce is unreadable, and much of what he himself wrote is pretty hard to swallow. I'd love to read a comparative study that distills out the interesting stuff in Cayce that doesn't require buying into his Atlantean belief system.