>O Virgin Mother, daughter of your Son, more humble yet more exalted than all other creatures. Chosen to fulfill the eternal plan of God, you brought nobility to our human nature such, that He who created us did not disdain becoming one of us. And so, within your womb the flame of love was rekindled, whose warmth brought this Rose to full bloom in peace everlasting. ---- Dante’s Paradiso – Canto 33

How is the Virgin Mary "daughter of your Son" when speaking to God?