As I mentioned before, Gelernter's book is mainly interested computer syntheses of human creative problem-solving, but he devotes a couple of chapters to looking at what his ideas mean for poetry, ancient thought, and spirituality.
Gelernter believes low-focus thought is the medium or music of mystical spiritual experiences.
His argument for this is rich and well worth reading. I can't include it in full here, and I'm afraid to edit it down lest I mutilate it, but you can read a few of the most relevant pages of it in this PDF scanned from the book.