With the metaphor of the corpse and the hill, Harun compares himself to Sisyphus, a character of Greek myth who was condemned to push a rock up a hill for eternity. He also references Camus’
The Myth of Sisyphus, a philosophical treatise that explains Absurdism, the philosophy that grounds
The Stranger (basically, that the quest for meaning in life is as futile as Sisyphus’s task). Here, Harun explains that the true victim of absurdity isn’t Meursault but himself and Musa, Meursault’s victims.