The Myth of Sisyphus

Camus outlines the legend of Sisyphus who defied the gods and put Death in chains so that no human needed to die. When Death was eventually liberated and it came time for Sisyphus himself to die, he concocted a deceit which let him escape from the underworld. Finally captured, the gods decided on his punishment: for all eternity, he would have to push a rock up a mountain; on the top, the rock rolls down again and Sisyphus has to start over. Camus sees Sisyphus as the absurd hero who lives life to the fullest, hates death and is condemned to a meaningless task.

Camus presents Sisyphus's ceaseless and pointless toil as a metaphor for modern lives spent working at futile jobs in factories and offices. "The workman of today works every day in his life at the same tasks, and this fate is no less absurd. But it is tragic only at the rare moments when it becomes conscious."

Camus is interested in Sisyphus' thoughts when marching down the mountain, to start anew. This is the truly tragic moment, when the hero becomes conscious of his wretched condition. He does not have hope, but "[t]here is no fate that cannot be surmounted by scorn." Acknowledging the truth will conquer it; Sisyphus, just like the absurd man, keeps pushing. Camus claims that when Sisyphus acknowledges the futility of his task and the certainty of his fate, he is freed to realize the absurdity of his situation and to reach a state of contented acceptance.

Source
Wikipedia