Fascinating. I notice that he is associated with "trance research", of a sort that's hard to evaluate from a couple minutes' googling. Trance and psychedelics do partly resemble each other.

I studied trance pretty intensively with a student of Milton Erickson's. Part of what drew me to it was a sense that it might be connected in interesting ways to the creative process. As it turned out, it was. But I don't use it very often.