There are rules in the physical world that don’t apply to the mental one. In a dream, you can fly. One can imagine a squirrel talking to one’s self. The realm of dreams and imagination is, however, often thought to be self-contained, with no tangible bearing on the real world.
But the study of precognition in dreams has taught cognitive neuroscientist Dr. Julia Mossbridge otherwise. She defines the term “precognition”, as “a kind of mental time travel into the future to get information.”