I think that great poetry is the most interesting and complex use of the poet's language at that point in history, and so it's even more exciting when you read a poet like Yeats, almost 100 years old now, and you think that perhaps no one can really top that.
Poetry is, first and last, language - the rest is filler.
Poetry is something that happens in universities, in creative writing programs or in English departments.
I would say that American poetry has always been a poetry of personal testimony.
I think the best American poetry is the poetry that utilizes the resources of poetry rather than exploits the defects or triumphs of the poet's personality.
I certainly can't speak for all cultures or all societies, but it's clear that in America, poetry serves a very marginal purpose. It's not part of the cultural mainstream.
I believe that all poetry is formal in that it exists within limits, limits that are either inherited by tradition or limits that language itself imposes.
And yet, in a culture like ours, which is given to material comforts, and addicted to forms of entertainment that offer immediate gratification, it is surprising that so much poetry is written.
And at least in poetry you should feel free to lie. That is, not to lie, but to imagine what you want, to follow the direction of the poem.
A life is not sufficiently elevated for poetry, unless, of course, the life has been made into an art.