The poem has a social effect of some kind whether or not the poet wills it to have. It has a kenetic force, it sets in motion...elements in the reader that would otherwise remain stagnant.
Denise LevertovYou can live for years next door to a big pine tree, honored to have so venerable a neighbor, even when it sheds needles all over your flowers or wakes you, dropping big cones onto your deck at still of night.
Denise Levertov