A hike up to the tree line—makes sense for a poem about trees, doesn't it? But what about the air above them? And can you see the forest for these trees? Stick with us, Shmoopers, and your eyesight will improve in no time. This poem, like all poetry maybe, yields more and more meaning each time you read it. The first reading will give you the situation, but subsequent excursions will bring you closer to your own ideas about the speaker's sense of life, the universe, and everything.