Patrick clarifies the long-standing debate about Mary as the mother of God. Addressing misconceptions, he explains how the Council of Ephesus in 431 declared Mary as Theotokos, meaning God-bearer. Patrick explains why Mary is indeed the mother of God, emphasizing that the divine person born to her is Jesus Christ, true God and true man. He puts to rest common misunderstandings and highlights the importance of this doctrine in grasping the incarnation and our faith.