First, everything in this fallen created order “answers to” something unfallen […] In other words, the dragon is the archtypical emblem of sly, crafty, rebellion – and this goes back to the Garden. Satan is that ancient dragon. If we read our Bibles rightly, we will pay attention to the symbols. Honor the symbols, people.
But of course Satan was a fallen something, and that something was, before he fell, an unfallen version of that same thing. My personal view is that he was one of the seraphim, which means that the seraphim are glorious, unfallen dragons, privileged to cry holy, holy, holy in the presence of God.
But in this world, the one we live in, dragons still mean what they mean. That meaning was assigned to us. Shifting the meaning of everything around in this metamorphing way seems to me to be not so much a testimony to our literary prowess as to the continued craftiness of the serpent.
(food for my thought and a warning as well.)