In his writings on the philosophy of religion, and especially in his Analogia entis, Przywara maintains one fundamental proposition: to establish «a unity between the natural and the supernatural, between philosophy and theology, in the key of a religious reality that is irreducible». This unity consists of an interior openness that presupposes a personal disposition towards seeking and finding God in the signs of the times, an awareness that one's own chosen way is «one among others possible». The full perfection of the created world is a parable of the infinite perfection of the Creator, and the Creator, because of his being the constitutive foundation of all, manifests himself in his creatures. The content of this manifestation is the concept of God, «God in all things and beyond all things». The article explains the essential categories that articulate the reasons of the analogy understood in this way.