What a great poem teaches you, and it’s not intellectual at all, is the resonance in the language that’s heard there. This goes back to the very origins of poetry and to the very origins of language. I think poetry is as old as language, and both come out of the same thing - an effort to try to express something that is inexpressible. If something can’t be said, what do you do? You scream. You make some terrible noise of pain or anguish or anger or something like that. You make a sound, an animal-like sound which, with time and society trying to calm you down, begins to take shape into something.