This excerpt expresses Shelley's idea that poetry is

The poem ‘’Ode to the West Wind’’ was written in the autumn of 1819, in the beautiful Cascine Gardens outside Florence and was published with ‘‘Prometheus Unbound’’ in 1820. The poet is himself in a mood of despondency and misery and says that he falls upon the thorns of life and is bleeding. He is seeking reawakening also through the poem and wants the wind to carry his dead thoughts and ideas like it has taken the leaves and wants fresh ideas to take birth. This is possible only if he first gets rid of stale ideas and thoughts and learns to replace them with new ones. In that sense even the poet is feeling a sort of intellectual deaths and is desirous of being given a new lease of life. "This poem was conceived and chiefly written in a wood that skirts the Arno, near Florence, and on a day when that tempestuous wind, whose temperature is at once wild and animating, was collecting the vapours which pour down the autumnal rains. They began, as I foresaw, at sunset with a violent tempest of hail and rain, attended by that magnificent thunder and lightning peculiar to the Cisalpine regions."