The Lamb's Supper: The Mass as Heaven on Earth reawakens a surprising ancient view of the Eucharist, as the harbinger of the supernatural drama described by the New Testament book of Revelation. Catholic theologian Scott Hahn thinks that many worshippers receive the sacrament of communion without ever considering its links to the end of the world, the Apocalypse, and the Second Coming. Hahn wants to change our minds; he wants us to know that "The Mass--and I mean every single Mass--is heaven on earth." Literally. So, Hahn declares, "Now heaven has been unveiled for us with the death and resurrection of Jesus Christ ... Jesus Christ Himself says to you: 'Behold, I stand at the door and knock; if anyone hears My voice and opens the door, I will come in to him and eat with him, and he with Me' (Rv. 3:20)." Hahn's enthusiasm, as evident even from these short quotes, is considerable--and infectious.