In Webster's New World Dictionary, dreams are defined as a series of feelings, scenes and ideas that "flow through" a sleeping person's brain.
A more authoritative and scientific explanation of dreams is psychology. Then let's see how psychologists look at dreams:
First, sigmund freud.
People think that what the dreamer "sees" is not the true meaning represented by the dream. Dreams have potential meanings, and dream interpreters can help the dreamer correctly analyze these dreams.
Second, carl jung.
What the dreamer sees is very important, and only the dreamer can make a correct analysis.
Third, Adler.
It is not difficult to interpret dreams, and there is no hidden meaning in dreams.
Based on the above description, we can know that dreams are only a reflection of the subconscious mind, and there is no difference between good and bad.