Those blessèd structures, plot and rhyme--
why are they no help to me now
I want to make
something imagined, not recalled?
I hear the noise of my own voice:
The painter's vision is not a lens,
it trembles to caress the light.
But sometimes everything I write
with the threadbare art of my eye
seems a snapshot,
Lowell famously separated poetry into two categories: “the cooked” and “the raw”. His attitude toward art and poetry is  typical of his time period , and taken to new levels by other artists, authors, and writers of the day. 
 Where America was politically and economically affected their need to break classic artistic styles; a cyclical theme in their work.
Epilogue