6 The Middle Ages, which, especially through Saint Bernard, sang Mary's glory and celebrated her mysteries, witnessed a marvelous flowering of French cathedrals dedicated to our Lady: Le Puy, Rheims, Amiens, Paris, and so many others. . . With their spires upthrust they announce from afar the glory of the Immaculate; they heighten its splendor in the pure light of their stained-glass windows and in the harmonious beauty of their statues. They bear witness above all to the faith of a people which outdid itself in a magnificent display of energy, erecting against the sky of France the permanent homage of its devotion to Mary.
Source: Le Pelerinage de Lourdes (Vatican.va)