I found this YT clip from Nelson Walters incredibly illuminating. Wowza...is all I can say. A new understanding of the 7 churches - symbolised by the 7 Menorah. The sequence of these events (regarding the churches) is significant. It goes to show - every jot and tittle in scripture has enormous depth and meaning.
https://www.youtube.com/watch?v=Gz8YwbAyOdY