It's a blast remembering that Colette actually weaponizes astral projection. That's crazy and I'm imagining what that's like now. Probably a mix of intense depersonalization, maybe a sudden draining of life. Possibly shortly after, there's some kind of (layman's terms) thrill seeker's rush. That's basically the closest you can get to an out of body experience or a near fatal experience in this game world without getting into an otherwise dangerous situation.
(First picture not by me. I haven't even played this game yet despite being very invested in the lore and characters.)