Is Duke Zhou true?

It's fake. During sleep, various stimuli inside and outside the body or external stimuli left in the brain cause visual activities, but after people enter sleep, the brain is still in an excited state, resulting in a picture composed of brain stimuli. They all say "think during the day and dream at night". Yes, dream, dream. Duke Zhou just made a rough guess according to this statement, and most of them were not established. Don't believe the outrageous statement.