First of all, it is important to note that this book does not come with an imprimatur from any clergy of the Catholic Church. This book an effort to bring historical information into the modern age. The Apocalypse or Revelation as it is also known, is a mysterious book. As one reads it, sometimes it is not chronological, other times symbolic and yet other times metaphorical and prophetic imagery. So it is difficult to understand. Ven. Fr. Bartholomew Holzhauser I believe holds the key to unlocking the book of the Apocalypse. His visions of the Seven Ages, or epochs, of the Church unseals this mysterious book.