Remember, there are four levels of application for these letters
I love this. And the fact that God would share this information with us for our understanding, in different layers and proven throughout time, is just amazing.
I'm going through a study on the rapture right now and the current topic is the huge emphasis on the churches in chapters 2 and 3 and then total absence of the church on the earth through chapters 4-22, so the letters are top of mind.
The Bible is incredible. The more I read it, the more blown away I am by it.