I don't much trust people who talk too much about the Book of Revelation. As I see it, that book and its dream-like apocalyptic imagery is (at best) fuel for wild yet idle speculation under the cover of allegedly divine revelation.
I've heard that Luther had similar things to say on it. Here is Luther's highly critical preface to Revelation:
About this Book of the Revelation of John, I leave everyone free to hold his own opinions. I would not have anyone bound to my opinion or judgment. I say what I feel. I miss more than one thing in this book, and it makes me consider it to be neither apostolic nor prophetic.