From one book (i have forgot the name of it) i have read that dreams have a message to you (from your subconsciousness?) and dreams will keep saying that message until you get it. I don't believe to that myself though!
I did read that DJ entry of your's and seems to be like a nightmare, and i've heard that sometimes nightmares do repeat.
I'm sorry that i cannot help to interpret that dream or help otherwise, because i've never had repeating dreams myself. Thats just what i've heard and read.