“At thy right hand there are pleasures for evermore” (Ps. 16:11)
“And unto the angel of the church in Thyatira write; These things saith the Son of God, who hath his eyes like unto a flame of fire, and his feet are like fine brass” (Rev. 2:18).
Thyatira was about 128 miles from Patmos, where John was exiled as he wrote these exhortations to the cities. What he wrote was delivered as a circular. From Ephesus, you would work northward toward Smyrna, and from there to Pergamum. At Pergamum, the route would turn east and head toward Thyatira. After Thyatira, the course would run southeast through Sardis, Philadelphia and Laodicea. All the churches, and Patmos also, could fit inside a circle with a radius of about 86 miles.
The city was not a great sophisticated city, but rather a working town, home to manufacturing and commercial guilds. Lydia was a merchant in purple goods, and although she was converted in Philippi, she was from Thyatira (Acts 16:14).
His feet were like fine brass, which is how the feet of the four living creatures in Ezekiel are described. Their feet were the color of burnished brass (Ez. 1:7). This language is particularly taken from the vision of the angel that Daniel saw (Dan. 10:5-6). The man there clothed in linen is like the vision of Christ in this place in two respects. In both places the eyes are described as flames or lamps of fire, and the feet are brass.
Apart from anything else the imagery might mean, it certainly means that the messenger is from God, and that His words must be obeyed.