This happened about 10 years ago. I was up for over two nights. Sleepless, I was also on Ritalin (ADD matters). I drank a bit too much coffee too in those days. We were going out to a club and right beforehand, I had visions of some bad event about to happen. Anyways, we proceeded with out plans. Usually I would be dancing my ass off. THis time I was sitting on the corner, dark thought, nothing in particular. We left early. Drove around. We love trees, went someplace with lots of trees so we could meditate and find out what's bothering me. The second we parked, something from the sky fell on my head, causing me major visions of a whole bunch of religion-related stuff. I couldn't talk to my friend who started driving. I felt my voice was changing, and I was telling him that this is not me and that I don't know what's happening. Then I saw myself on a surgery table. Something about God and what not. Operation table? it was like a bad dream. Anyways, we parked on my driveway, as soon as the car stopped, I felt this "thing" lifting off of me, leaving me, getting far from me, back into the sky. I started crying.
Since I have had been sleepless, I am assuming I "dreamed with my eyes open". But boy was it freaky as heck.
Still to this day, I think about it, analyze it. I wonder if my brain waves slowed down as if I am in a sleeping mode, but my eyes and the rest of my body continued to be away. A bizzarre experience but also interesting.
Some of the stories I read here just now tho... man, crazy.
I have some other ones. And there is one I cannot seem to grasp at all.