Every couple of months I have kinda the same dream. I mean, it's not exactly the same, but it's pretty obvious it occurs in the same worldspace. I first got it when I was 7. It didn't last very long, but I (at least, I assume it's me) was trapped under a burning wooden beam that had fallen down from the roof. I remember it as being stupidly realistic too. Little cinders were coming off and the wood was flaking where it was burnt, something I probably wouldn't have seen before at that age.
The next version I remember seems to be when I was about 9, as it featured an object I only had for a short time at that age. It was roughly the same, except this time I was standing in the corner of a burning room, staring at a little kid trapped under a burning piece of wood.
These continued up until I was 12, just random, short clips of various parts of what I had started to piece together as being a mansion that had been set on fire. I know they were all the same place, I recognise the same corridors and rooms every time.
Then around christmas of my 12th year on earth I started regularly getting those kind of dreams in which you can control what happens and you're not just watching. The amount I got that specific dream increased too.
Now, every time I get the dream, I walk around and try to explore a different part of it. There are many closed doors, which I assume lead to places I wouldn't usually have gone at the age of 7 - the attic, a basement, a servant's quarters, an office. The last 2 of those had partially open doors but if I tried to look around them, the rest of the room was just flat and fuzzy, as if my brain had only been able to remember the parts of those rooms that were visible when just walking past their open doors.
In the last 5 months or so, things have started getting interesting. One time I found myself in the original room, but from another perspective, and I could see the 9 year old me and the 7 year old me. That was the first time I saw someone other than me in one of these dreams. In the corridor outside the room, a mysterious, silhouette of what I think was a woman was also looking into the room, but then runs away inexplicably.
The most recent one, last thursday, finally let me go outside the building, into the main courtyard infront of the mansion. There was a horse and carriage on one of those huge circular things you sometimes get outside mansions.
While I'm not superstitious or religious, it did get me thinking for a while that reincarnation was real. I often get other dreams about fires, volcanos etc, and I was talking to my friend once and she gets a lot of dreams in which she drowns, many of them being the same one. She had the theory that it was the deepest part of the spirit remembering the events of its death in it's last life. She's not religious either, although she does support the theory of reincarnation more than I do. I also came up with the idea (just a few weeks ago after watching Angel Beats) that what if reincarnation is real, but the spirit is tied to certain other things, so in every life you are destined to befriend the same people, and lead roughly the same life, and as such, what we think of as us dreaming about our current situation is actually our brains trying to tell us about our previous life...