So, fun fact, when most people are able to recall whatever incredible idea or artistic vision they had in their dream, they soon realize that it was just their memory replaying something that already existed. An obscure song that you forgot about, a scene from an old movie that you’d think would make for a funny comic strip, etc. Now, this doesn’t mean that people aren’t creative and can’t dream of new things, it just means that your dreams just churn out a vomit of things you’ve processed before.
Source: I made it up
When I was a student I used to stay up late doing math homework
I would have these dreams where I was doing math and I’d solve really complex problems or create beautiful proofs. When I woke up I would furiously write them down before they faded, and then I would realize they were complete and utter gibberish.
Sometimes I do dream up something good, but mostly it’s junk.
One thing that dreams are definitely good for is writing ideas.
Unlike maths, it doesn’t matter if a story is only half-formed or incoherent nonsense… If there’s an idea in there, you can take that and grow it in a way that actually does make sense.