A few sides about Williams (I’ve read Many Dimensions, Descent Into Hell, and my favorite- The Greater Trumps, I still gotta read The Place of the Lion, and I have to get my hands on All Hallows Eve)-
in his pre-C’tian days, he was a member of a latter version of The Order of the Golden Dawn, which in an earlier form has Aleister Crowley as a member;
he developed a lovely & profound mystical view of the interconnectivity of the Trinity within Themselves, with & among humans (and probably all the rest of Creation) under the terms of CoInherence, out of which came his view of Transposition- the actual psychic assuming of others burdens, BUT in his personal life, he had a dark side involving power & pain, in which he had a non-sexual (?)
affair with a female student involving a bit of S-M play. To his credit, he did keep it more restrained than a lesser man would have, and I think did end it out of remorse & shame.
There is a really good graphic novel entitled Heaven’s War in which Williams (aided by Tolkien & Lewis) battles Crowley on the astral plane which the latter
has invaded to inflict some damage. A fun point- as Crowley slips along the time
stream, he pops into a late 60s record store- he’s quite thrilled to be on the cover of Sgt Pepper’s Lonely Hearts Club Band.