I’m following your conversation with Craig and have to add few things:

all of these studies I’m aware of, what’s being studied are Buddhist or secular meditators

A quick Google search yielded this: Mario Beauregard, Vincent Paquette. Neural correlates of a mystical experience in Carmelite nuns

Paul on the road to Tarsus [sic]

Standard (so-called) OBE. Ergo, psychological phenomenon (essentially a form of lucid dreaming aka “astral travel”). I bet Saul was triggered by his religious zeal — happens all the time. Autosuggestion falls into the same category of triggers.

Lady Ayahuasca

Like Princess Magu (hemp goddess). Cannabis has its own character that with interaction with humans manifests as such (being). It’s also worth to mention that all stoned people are stoned. I mean, the effects are roughly the same on every user.

Scientists will make subjective journeys to meet God and explore the seven heavens

Is this Theosophy or what? Anyway, I traveled hundreds of heavens and hells and they are real AF, but the only way I could access them was in the mind. They call it travelling without moving for a reason.

there’s no real God out there

Exactly — there’s no real God out there that’s not in there.

You give the power of your own mind too little credit.