Recently I have had a couple of repeated dreams. The interesting thing is that the first time I was completely clueless as to why I had them. The second time, after "future" events passed, the meaning was entirely clear. My question is why?

I am assuming there is a reason, possibly it serves as a preparation. I think that it may be the same principle as muscle memory. That is, the more times you repeat an excercise, the easier it becomes to do. Just like, the more times you have the same dream, the easier it is to remember.

I would like to know from those who have/had recurring nightmares. Do they keep getting more and more vivid each time? I don't think the vividness would reduce any...