The best moments involve a loss of control. It's a kind of rapture, and it can happen with words and phrases fairly often - completely surprising combinations that make a higher kind of sense, that come to you out of nowhere. But rarely for extended periods, for paragraphs and pages - I think poets must have more access to this state than novelists do.
Don DeLilloThere's a moral force in a sentence when it comes out right. It speaks the writer's will to live.
Don DeLillo