I have never had a dream like this or heard anyone who has had a similar dream. I fell asleep in my recliner, as I am inclined to do, so in my dream I was also sitting in a chair. I am very sure I was about 80% lucid and in REM because, even though I felt paralyzed, I tried to speak, I think outloud, but it took all the focus and energy I could muster. Ok, here's the dream...
I was sitting in a chair and was explaining to some people who were all dressed in long flowing satin robes that were a very dark flat grey, but not black. I was explaining that every time I closed my eyes for more than a few seconds, even though I was in a building at the time, I would see a very dark sky with lots of dark grey clouds. There were also many rectangular objects just floating in the sky. These were barely distinguishable from the clouds.
But the strangest part is that some kind of symbols would appear for what seemed like 1 or 2 seconds, but it was so brief it was hard to focus on any one of them so I could remember them. I did remember a couple. One was a geometric shape like an octagon, but it could have had 10 or 12 sides. It was neon green. there were also neon green beams of light coming out of it, similar to the way a child draws a sun. All of the symbols were thin neon lights, very specific in design as if they were drawn by a draftsman.
It seemed like dozens of these symbols flashed in front of me, up in the sky with the dark clouds and rectangular shapes as a background. they were NOT alien space ships or anything like that. They looked like neon lights and seemed like they were different colors.
The people there wanted me to describe what i was seeing, but it was very hard because it was so scary. I had to force the words out of my mouth. There were 2 or 3 people walking around my chair. I kind of got the impression that the symbols meant something to them, but they meant nothing to me. I just wanted it to stop.