Man is an instrument over which a series of external and internal impressions are driven.
This definition of poetry is easily spotted in Shelley's poem, Mont Blanc, where we see the mountain as being a reflection of a greater truth and the poet whose imagination helps define the reality of that mountain. For example, in Ozymandias, Shelley takes a particular artwork and shows its hidden beauty by discussing the various levels of perception and reality that surround the statue. In his Ode to the West Wind, Shelley displays this idea. The wind that blows through all elements and spheres of the earth can be seen as a greater power and inspiration that moves man and nature.