that’s just the surface,” some Catholics say, “I don’t think I want to see the depths.” Well, in this little book, I’d like to propose something outlandish. I propose that the key to understanding the Mass is the biblical Book of Revelation—and, further, that the Mass is the only way a Christian can truly make sense of the Book of Revelation. If you’re skeptical, you should know that you’re not alone. When I told a friend that I was writing about the Mass as a key to the Book of Revelation, she laughed