The poem is addressed to the west wind, personifying it as both a destroyer and preserver. It describes the wind driving away dead leaves and carrying seeds to their winter beds. The wind is depicted scattering clouds and heralding an approaching storm. The poet wishes they could join the wind's wanderings over land and sea, but feels weakened by life's struggles. They offer themselves to the wind and hope its voice will spread their message, just as spring must follow winter.