who alone is created in the image of God. Then it moves to man’s return to God through his life of moral and religious choice, and culminates in the way or means to that end: Christ and His Church. Thus the overall scheme of the Summa, like that of the universe, is an exitus-redditus, an exit from and a return to God, Who is both Alpha and Omega. God is the ontological heart that pumps the blood of being through the arteries of creation into the body of the universe, which wears a human face, and