By failing to read or listen to poets, society dooms itself to inferior modes of articulation, those of the politician, the salesman, or the charlatan. In other words, it forfeits its own evolutionary potential. For what distinguishes us from the rest of the animal kingdom is precisely the gift of speech. Poetry is not a form of entertainment and in a certain sense not even a form of art, but it is our anthropological, genetic goal. Our evolutionary, linguistic beacon.
Because every book of art, be it a poem or a cupola, is understandably a self-portrait of its author, we won't strain ourselves too hard trying to distinguish between the author's persona and the poem's lyrical hero. As a rule, such distinctions are quite meaningless, if only because a lyrical hero is invariably an author's self-projection.
Perhaps art is simply an organism's reaction against its retentive limitations.
Poetry is not only the most concise way of conveying the human experience; it also offers the highest possible standards for any linguistic operation.
In America, a metrical poem is likely to conjure up the idea of the sort of poet who wears ties and lunches at the faculty club. In Russia it suggests the moral force of an art practiced against the greatest personal odds, as a discipline, solitary and intense.