"Make this experiment whether you believe in God or not. At your first opportunity, stop in a Catholic Church for a visit. You need not believe, as we Catholics do, that Our Lord is really and truly present in the tabernacle. But just sit there for an hour, and within that hour you will experience a surpassing peace the like of which you never before enjoyed in your life. You will ask yourself as a sensationalist once asked me when we made an all-night vigil of adoration in the Basilica of Sacre Coeur in Paris: "What is it that is in that church?" Without voice or argument or thundering demands, you will have an awareness of something before which your spirit trembles -- a sense of the Divine."