Wow, this is an interesting question. I think a common plot I used to encounter is some apocalyptic disaster going on, like an alien invasion/lava flowing/tornadoes, and I have to run away. I suppose that's symbolic of running away from my problems though, haha. I used to get those dreams a lot in high school, probably because I procrastinated too much.

As for places, I often find myself in school, my house, or some fantasy place. And the people in my dreams are just people I think about a lot. C:

Haha, I just saw some people I know using it, and I thought it might be cool. Not too much thought went into it.