A revolutionary, Shelley believed that poets exercise the same creative mental powers that make civilization itself. The close of his "Defence of Poetry" underlies the thought of "Ode to the West Wind":
Poets are the hierophants of an unapprehended inspiration, the mirrors of the gigantic shadows which futurity casts upon the present, the words which express what they understand not, thetrumpets which sing to battle and feel not what they inspire: the influence which is moved not, but moves. Poets are the unacknowledged legislators of the World.
The trumpeting poetic imagination, inspired by sources