According to Greek mythology, Sisyphus was once a cruel King of Corinth. And when he died, he was eternally condemned to push a giant boulder to the top of a steep hill. The closer he got to the top, the steeper the hill became, and the harder it was to push the boulder. Every time he had almost gotten the boulder to the top of the hill, he would lose control of it. It would roll over him and down to the bottom of the hill, whe…