Warning: Really Obvious Symbolism Ahead

Sisyphus stands at the base of a hill, considering the large rock in front of him.
“I wonder,” he thinks to himself, “If I’ll be able to push the rock over the hill this time. I’ll bet it just rolls back down once I get it to the top.”
All of Sisyphus’ friends in Tartarus, however, tell him that he needs to try it and to keep on trying. Eventually he’s bound to get it over the top of the hill.
“Don’t be a pussy,” say all of the other shades in Tartarus.
After much consideration and wringing of his hands, Sisyphus sighs, presses against the rock, and, putting all of his weight behind it, begins the arduous task of rolling it up the hill.
Just as he reaches the summit, he loses his grip, and the rock rolls back down the way it came, just as Sisyphus knew it would.