I’ve never done any drugs (trauma from witnessing alcohol use as a child), but once I had a dream where I just suddenly died for a short moment without any connection to the dream I was having. Like, literally died, there was nothing, I just disappeared for a blink. Absolutely gone. I strongly believe had I not come back I would have just died in my sleep. I’ve never had that experience before or since, and it’s really hard to describe since you can’t really feel death, but that reminded me of it