Even in 2015, dreaming remains one of the world's great mysteries.
Some people believe that all dreams have meaning and may even foretell the future. Other people don't see any value in dreams, and believe they come up short on meaning or importance.
Thankfully, the people over at YouTube channel Alltime10s have decided to dive into the issue a bit deeper. In this compelling video, they explore some of the strangest facts involving your dreams. Did you know that 12 percent of sighted people only dream in black and white? Or that even rats have complex dreams?
Check out some more of the amazing facts in the video below.