Adiutricem §18

¹⁸ Here our mind, almost of its own accord, looks back through the annals of the Church to the illustrious examples of her ancient unity, and dwells with affectionate regard on the memory of the great Council of Ephesus. The absolute unity of faith, the participation in identical worship, which in those days linked East with West, manifested itself in the Council with a strength unparalleled, and shone beyond it with a radiant beauty when, after the Fathers had emphasized the dogma that the Blessed Virgin is the Mother of God, the news of their procedure-spread abroad from the exultant populace of that most devout of cities-filled all Christendom with transports of universal joy.