The life of Jesus Christ contains inexhaustible depths. It reveals the God who “so loved the world” (John 3:16) that he would bind himself to his creature forever. And because it shows us our destiny and our salvation, the life of the incarnate Son of God reveals the full truth about man. In the spirit of Mary, who pondered the events of her son’s life in her heart, this booklet seeks to help the reader enter ever more deeply into the “great mystery” of the incarnation.