I placed a jar in Tennessee (1)
Here, we get a vision of an American state. It's not one of the pilgrim's settlements, and it's not a pioneer's goal. It's simply Tennessee, a mix of the mid-west and the south. But this placement of a man-made object into a state does remind us a little of the American people sprawling all over this country, taking over bit by bit.
It made the slovenly wildernessSurround that hill. (3-4)
Here, the wilderness is messy, something almost asking to be controlled and bettered by humanity's influence, the way things were done in the days of the pioneers.
The jar was round upon the groundAnd tall and of a port in air. (7-8)
There's a reverence for a product of industry here that reminds us of patriotic jingoism, or glorified, fast-talkin' propaganda. But we're not spurring a nation to war here... we're talking about a jar.