This dude. Gregory Palamas. While I’m not part of it now (agnostic) , he had a lot to say about Theosis / Deification – something that Western Christiandom just doesn’t really deal with (and it’s what attracted me to Eastern Orthodoxy when I was into it ’bout 20 years ago O_O )
Anyway, lots of good practical psychology in there, whether or not you go for the Theosis angle and it was useful to me. So I’d happily hang out with him for a bit. I mean, not looking like this but when he was a monk ‘n stuff.
or his teacher Nicodemus. Either one but I think it’s is one of those “Student surpasses the teacher” situations, at least in how-to-explain stuff.