This text examines Marx’s conception of religion as ideology, focusing on his introduction to the "Contribution to the Critique of Hegel’s Philosophy of Right." The author analyzes Marx’s engagement with Feuerbach’s critique, which Marx views as the prerequisite for all social criticism. Reflection on religion reveals how man hypostasizes his own essence into an external object (God). The text critically evaluates Marx’s thesis that "man makes religion," noting a reduction of religion to mere consciousness while ignoring its roots in ritual practice. A central theme is anthropological alienation: man is not naturally himself but constitutes a task and a calling. The author distinguishes between the world as a whole and the human "environment" (Umwelt), such as the state and society. Religion is thus interpreted as a "fantastic realization" occurring when man lacks true reality in his social existence. Ideology serves as a substitute fulfillment in situations where the human being fails to achieve genuine self-realization within the practical world.