But I have received everything in full and have an abundance; I am amply supplied, having received from Epaphroditus what you have sent, a fragrant aroma, an acceptable sacrifice, well-pleasing to God. (Phil 4:18)
As for the meaning of the letters, you will find different opinions depending upon which scholar you reference. Probably the most prevalent belief is that of Cyrus Scofields who is considered the father of the modern day dispensational view of the end times. It could be said that his bible commentaries have had more influence in shaping the modern view of the end times than other published writings. In his companion commentary of the Scofield Bible, Cyrus saw four different meaning in the messages to the churches.
(1) Local, to the churches actually addressed; (2) Admonitory, to all churches in all time as tests by which they may discern their true spiritual state in the sight of God; (3) Personal, in the exhortations to him "that hath an ear," and in the promise "to him that overcometh"; (4) Prophetic, as disclosing seven phases of the spiritual history of the church from, say, A.D. 96 to the end.
About that time there occurred no small disturbance concerning the Way. For a man named Demetrius, a silversmith, who made silver shrines of Artemis, was bringing no little business to the craftsmen; these he gathered together with the workmen of similar trades, and said, "Men, you know that our prosperity depends upon this business.(Act 19:23-25)