I was reading one song, and the title is:
"(Quicksilver daydreams of) Maria"
I searched some meanings, but they most sound pejorative and I think that is not the idea the phrase is trying to pass with quicksilver daydreams.
I found some words like voluble (this is not a bad choice), unstable, changeable.
What are good words to use that mean inconstant, but are not pejorative?