The Book of Revelation began its existence being thought of as an apocalypse, a revelation from God, and turned out to be a mystery. It continues to cause problems for interpreters and commentators. I have two commentaries that have over 1,000 pages each. They are both written by respected academics yet both are entirely different in their approach to and understanding of Revelation. And this begins with the translation of the Greek text.
As for myself I have read the two commentaries, other books on Revelation, the book of Revelation with various study guides and still do not think I have it all figured out. There is one thing though that I have found in my efforts. It came to me when I asked myself “Why is the Second Coming described at the end of chapter 11?”
I think the answer to my question is that Revelation consists of two very different accounts of events. Chapters 1 through 11 begin with John on the island of Patmos and end, as I said, with the Second Coming. In this first section, events on earth are described in literal, figurative and symbolic ways. The second half of the book is a spiritual account of events that impact people all the way from the formation of the nation of Israel at Mount Sinai until the believers are united with God in the New Jerusalem, and evil spirits and unbelievers have ceased to exist.
The rest of what I think I have learned about the book of Revelation is on the Revelation page of my blog as “Revelation: A Short Version.”