My post got screwed up some way and wouldn’t allow comments. So I deleted it and here it it again. (I’ll try to reproduce the two comments)
John used this device to separate the church (a principality) from the angel (a spiritual force). We might well emulate that in our own thoughts and feelings. When the angel is remonstrated with, it may suggest that a foreign spirit has entered into and threatens to dominate the church. We all know of cases where this has happened, though not necessarily fatal.
We also all, at least I, go to the far country sometimes and need to “come to ourselves”. The letters to the Churches seem to be to a large degree toward that purpose.
I’ve been away, so for the whole morning I have interespersed comments on the posts of the last five days. Read if you get a chance.