The book of the outstanding Swiss theologian Hans Urs von Balthazar, offered to the attention of readers, is part of a monumental trilogy devoted to the study of truth as one of the three transcendentals of God (Balthazar devoted 5 volumes of Theodrama and 7 volumes of Theological aesthetics to the other two - good and beauty). At the center of Theology is the fundamental problem of the relationship between God and the world: can God make himself comprehensible as the God of this world without losing his divine character? Can God reveal himself to humanity without people "forging" for themselves a certain - like an idol - concept of Him? Is it enough of the idea that man is "the image of God" in order to make him the "owner" of the Prototype itself? Sharply raising these and other central questions of Christian doctrine, Balthazar comes to the conclusion: God, who truly and directly interprets himself, does not cease to be a Secret.