Not that this is what's going on here, but I'm just going to blog for a minute.
I just had a dream, and though all of the details have already disappeared because I have been moving around, I distinctly remember lying in bed, thinking about the dream, and realizing, "Hm. Maybe it means that I want to see things like I'm a little kid again."
It was something about listening to figures of authority - a lesson which I have been stubborn in remembering since I have a decent job and can afford to be on my own.
So what I would try to do if I had a dream like a documentary, and when I was a kid it was what I watched a lot of, is abstract the fuck out of the information until it becomes a sort of Rorshach test.
So I used to __sit__ in front of the TV and __watch__ a __documentary__. What is sitting?
Something that requires no effort and is presumably comfortable. What is watching?
An act which requires again, no effort from us, may imply distance, which may imply safety (e.g. watching a documentary about lions 6,000,000 miles away is quite safe.)What is a documentary?
Something that basically takes all of the danger and work out of acquiring information and spoonfeeds it to us.
As for the horror stuff I would not want to speculate, because being scared can be a personal thing like a phobia we might have, or it can be, in my book, a random evolutionary LARP which your brain is trying to prepare you for - an evolutionary explanation for all dreams, as I'm sure you're already aware.