Defend the Faith
Pope St. Leo IX:
“The holy Church built upon a rock, that is Christ, and upon Peter or Cephas, the son of John who first was called Simon, because by the gates of Hell, that is, by the disputations of heretics which lead the vain to destruction, it would never be overcome.” (In terra pax hominibus, Sept. 2, 1053, Denz. 351)
Ven. Mary of Agreda, Mystical City of God, Vol. IV, 26:
"When I saw Her in this place of inaccessible light [seated at the right hand of her Son on the throne of the Blessed Trinity], it seemed to me, that She possessed no other splendor than that of God himself, who seemed to communicate it to Her from the fount and origin of his immutable Being. Through the humanity of his Only-begotten the same light and clearness seemed to be in both the Mother and the Son, each according to their degree; yet in substance seeming one and the same, not found in any of the other blessed, nor in all of them together."