"He and I were both Catholics, so we used to go to mass together. He used to spend such a time in the confessional, I used to wonder what he had to say, because he never did anything wrong; never quite; at least, he never got punished. Perhaps he was just being charming through the grille." (1.2.38)
Often, almost daily, since I had known Sebastian, some chance word in his conversation had reminded me that he was a Catholic, but I took it as a foible, like his Teddy-bear. We never discussed the matter until on the second Sunday at Brideshead, when Father Phipps had left us and we sat in the colonnade with the papers, he surprised me by saying: "Oh dear, it's very difficult being a Catholic." (1.4.50)
"I mean about Christmas and the star and the three kings and the ox and the ass."
"Oh yes, I believe that. It's a lovely idea."
"But you can't believe things because they're a lovely idea."
"But I do. That's how I believe." (1.4.63-66)