My jr high / high school friend Julie used to claim that she could astral project herself into the kitchen and look around in the fridge and stuff, LOL.
I've personally never bought astral projection. Having studied a lot of neurology, I think our minds are really powerful; powerful enough to convince ourselves that we're doing shit that we're not really doing. But I think this may drift this way the fuck off this track, I dunno how the fuck you're gonna have this catch-all topic. I've never considered astral projection as part of the "occult" and I've never considered the "occult" as being anything near metaphysics or philosophy. Astral projection would fit more into "paranormal" like mental telepathy and ghosts.
I think we had an occult thread, here, once, and it was was mostly people poking fun at it. Same with the astrology thread, there are way too many scary smart MENSA nerds in forums (you think YOU'RE smart, LOL) to have serious astrology or occult discussions. They just sit there like stinky wet turds.
But, string theory, quantum mechanics, etc., that's all related to cosmology and metaphysics, Plato's forms, all that stuff.