Each of us has a dream. Dreams are what you think of every day, plus your own experience and mental state, which are processed by your brain and become our dreams. If you don't believe me, there's nothing you can do. If you have, I suggest you go and see The Interpretation of Dreams, written by Austrian medical scientist Freud, who is the founder of psychoanalysis. The book he wrote scientifically describes the causes of dreams, the source of dreams, the treatment of dreams and so on. Fortune-telling in Jianghu is to look at your face, your specific situation, your facial expression, your dress, and say something irrelevant, that is to say, this kind of person knows some local psychology and can roughly judge some of your situation.
I just graduated, but I read Freud's books in college. After reading it, I don't believe that dreams are omens. The specific situation depends on you. I have answered similar questions like you, so you can go and have a look!
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This is just a suggestion. It's not necessary.