Science behind dreaming

Believe it or not there is a lot of science that goes on when you lucid dream. Rapid eye movement is when dreams mostly occur, REM process memories from the past day and uses them to make the basis of the dream. There has been a lot of cases in which dreams are childhood memories that was either a great thing or a bad thing. When in lucid dream your reality state of the brain works with your imagination so that your are aware you are dreaming.