I've had these for ages now and the latest one I had a dream when I was 7-8 and it happened yesterday it was weird. Idk if it changes for anyone else, but for me it's like a recording I'm re-living. It's only a few seconds though or a minute or 2. This got even weirder and started happening in day dreams and as random thoughts you have, and when they happen these feel like screenshots. As far as I know it's signs of being born naturally to be a witch/warlock.
I like to say I have a theory about what they acctually mean but my theory is... When you realised you've had the dream, you NEED to make everything happen that happened in the dream. Idk it's a theory, sometimes weirder shit happens when I'm high