The three main concepts of LukĂĄcsâ famous book History and Class Consciousness are already contained in the title: History, Class and Consciousness. 1 These three concepts are especially developed in the longest and most important essay of the book, âReification and the Consciousness of the Proletariatâ. 2 I will bring these three concepts â Class â Consciousness â History â together into a single thesis, which is that LukĂĄcsâ reification essay combines these concepts in an existentialist way . More precisely, he unites them into the first great existential blueprint of communist revolution. 3 My aim is to radicalize with this âexistentialâ the common interpretations of LukĂĄcs which claim that, in his critique of alienation and reification, he brought questions of subjectivity, consciousness and praxis into the Marxism of his time, and that his âPraxisphilosophieâ transformed traditional Marxism into what would later be called âWestern Marxismâ. My thesis instead claims that LukĂĄcsâ existentialist critique of capitalism accomplished the same kind of radicalization that Kierkegaard had done for religion long before him, and that Heidegger did for ontology shortly after him.