The great theologian Charles Journet explores the meaning of dogma in his classic work What is Dogma? In what sense are dogmas an object of faith? How do reason and faith relate to dogmas? How are dogmas both essentially unchangeable and yet open to development? Are dogmas accessible only in learned theological language or are there common-sense ways of understanding them? Journet addresses these and other important questions. He also discusses examples of dogmatic development: the dogmas of the Trinity, of Christology, and of Mariology. And he explores the relationship of dogma and mystical contemplation. In short, Journet shows why dogma is a subject of which Catholics need t be afraid.