Seamus Heaney, the great Irish poet, whose marvelous collection of essays, “The Redress of Poetry,” I like to re-read, writes that W.H. Auden’s elegy for Yeats was “a rallying cry that celebrates poetry for being on the side of life, and continuity of effort, and enlargement of the spirit.” Heaney believes that one function of poetry is to act as a counterweight to hostile and oppressive forces in the world: he calls this “the imagination pressing back against the pressure of reality.” This is what he calls “redress”, whereby “the poetic imagination seems to redress whatever is wrong or exacerbating in the prevailing conditions,” offering “a response to reality which has a liberating and verifying effort upon the individual spirit….tilting the scales of reality towards some transcendent equilibrium….This redressing effect of poetry comes from its being a glimpsed alternative, a revelation of potential that is denied or constantly threatened by circumstances.”