Hell, or rather my brief experience of it.

[Jackalope]

Two words: Sleep Paralysis.

I had a single experience with sleep paralysis, which I think I talked about here before. I believe it was a combination of sleep deprivation, stress, and medication. I don't fully recall the details, but I do remember feeling wide awake, completely unable to move, and absolutely terrified. I had a sense that I was not alone in the room, and that those present were there to harm me. The experience was reminiscent of what I've read from UFO abduction stories.

Fortunately, I had the benefit of not being alone, and although the experience felt VERY real, I know that it was not. Had I been alone, I cannot be sure that I could dismiss the experience as unreal so easily.

For what it's worth, I don't put a lot of stock in anything that happens when someone is in an altered state of consciousness.