Is this sentence grammatically correct?

I didn't really understand the grammatical relations between the words in this sentence: "Donald's sentences went about as far as you can go hooking Hemingway declaration (a sentence which had been the precious most-imitated style in America) to dreams, nonsense and surrealism."

I didn't really understand what this means.

And here is the context: I agree that magnificent innovation is not in abundance right now. But that's because a lot of what passes for innovativeness is rehashed Barthelme. As he wrote, about a similar circumstance (the death of postmodernism), "who can make the leap to greatness while dragging behind him the burnt-out box-cars of a dead aesthetic?" Donald's sentences went about as far as you can go hooking Hemingway declaration (a sentence which had been the precious most-imitated style in America) to dreams, nonsense and surrealism. We don't need another Donald.