It usually means you are dealing with someone who has regularly scheduled, detailed discussions about Keats with his end table and ottoman. You know, a sociopath.
I see nothing wrong with the author acknowledging that he has met God. We all have. The atheists don’t want to admit it, but He has entered every heart and we can meet Him there if we will bend our stiff necks. Mocking a believer and calling him a sociopath is getting dangerously close to mocking God.