A long time ago, before memories were spread by mouth, there were two forces, the Light and the Dark. They lived in harmony, shared bread and wine, and danced together in balance. Then.... a dispute arose, and as a way to settle it THE GAME was created. For a while it was sufficient. Until one day the side of darkness accused the side of light of cheating. Nuh uh, said light. Did so! said darkness. Did not, and your mother smells like a camel, said light. Why you!! said darkness
... and now they are in eternal war, and you must choose a side.