My little adventures in dreamlands!

I don't know if DJ is only about Lucid Dreams or all dreams that i have. Sorry for mistakes in English language because it's not my main language. For my first entry i will write about a dream that wasn't lucid and long.

I was dreaming that i was walking on the house roof tops with my friend at night. I was carying a DVD disc. It fell a lot of my hands and every time i picked it up.
We reached a bridge out of books that was connecting 2 roof tops at fifth or sixth floor. My friend started to cross the bridge and i followed him. Then he crossed to otherside the bridge started to collapse. I hitted the ground on the books (usually i wake up after falling).
After falling I didin't seen anything but i heard a train coming in front of me. I opened my eyes *oh gosh* I was laying on rails and the train was driving to my direction. In my mind I was screaming: Wake up! Wake up! And BAM I got hit by a train.

That's one of my favorite dreams because I think that after the fall I ended up dreaming within a dream and I think I almost became lucid in this dream.