Demon / Devil dream meaning is explained below using 1 different source. Each interpretation is shown with its source.
Interpretation 1 — James R. Lewis and Evelyn Dorothy Oliver
Dreams of demons are not always dreams of evil, or even symbols of torment. Devils can, for example, represent intelligence, cunning (“devilishly clever!”), and even sexuality (“You devil, you”). These traditional representatives of the dark side often symbolize the unconscious, especially one’s shadow self.
Source: Dream Symbols in The Dream Encyclopedia • Author: James R. Lewis and Evelyn Dorothy Oliver