I did a presentation on "The Second Coming" the other day where I talked about just that!

He was certainly more than a little woo, and sometimes it's hard (or maybe not even worthwhile) to disentangle what's metaphorical/political in his poetry from what's straight-up occult. He seems to have had a justifiable obsession with the idea that some kind of inherent bestial violence is an urge lying dormant in human blood. "Odour of blood when Christ was slain / Made all Platonic tolerance vain / And vain all Doric discipline."