However, dreams are thoughts during the day, dreams at night, things you see and experience during the day, and your own hazy fantasy is that your brain is still working during sleep, so you will dream at night. The content, characters, events, scenes and so on are as messy as science fiction movies.
For example, sometimes I dream that a huge monster or something has been chasing you.
You keep running and running. . . . Finally, I got up and found that my left hand was pinned down by my body. .
Just don't think about these happy things ~ not much to say, good luck ~!