Ah, now that's an interesting connection I hadn't drawn! I've been meaning to dig more into Winifred Hodge Rose's Heathen Soul Lore for a while now, and one of the things I'm curious about is how it parallels and differs from the "standard" subtle body model JMG teaches. The idea of different parts of our self having their own being and agency is pretty different from what we are used to, though I suppose the Jungian model has some of that, and it's become pretty common to talk about "this part of myself wants X while this other part wants y" or "my subconscious feels one way, but my conscious self another" or the like, so maybe it's not so alien.