HMMM... stories in dreams? Frustrated head mumbles

I don't know what it is, but the last few days I've been having a lot of dreams with snippets of plots and dialogue in them. It's been weird because I can't place them in any single story, can't attach them to any single muse or in any single world setting - but I know they ARE part of one of the world settings I already have. It's frustrating, like there's this huge thing that I've almost got but can't quite grasp.

Last night I had a pair of unknown folk having a dialogue. It was incredibly vivid, I could see every wound, smell the blood and see the flickering light on the rock and bodies... Now where does it belong? *kicks muses* It's never this vivid.