By Robert Royal, The Catholic Thing - I’m hardly the only one to have had such an unforgettable, life-changing experience there. During Vespers at Notre Dame on Christmas Day 1886, the great modern poet Paul Claudel, previously a non-believer, recorded, “In an instant, my heart was touched, and I believed.”... For all its tumultuous history since the French Revolution, Notre Dame has still been, you might say, the beating heart of France.