In Part VI, the speaker, who could be the poet, says,
Oh, lift me as a wave, a leaf, a cloud!
I fall upon the thorns of life! I bleed!
He has already wondered what it would be like to be a "dead leaf" borne by the wind and a "swift cloud" that could fly with it. He seems to wish to be raised aloft, away from the "thorns" that prick him and bring him pain; he wishes to be objects that would take him high up and away from the pain of the earth. In this way, he wishes to be liberated from his life's burdens. He goes on to tell the wind, in Part V,
Drive my dead thoughts over the universe
Like wither'd leaves to quicken a new birth!
Thus, the speaker seems to feel that he has already perished in some way and that he hopes to have his dead parts carried away by the wind so as to allow him a new start, a rebirth. Finally, he hopes that the wind will,
[...] by the incantation of this verse,
Scatter, as from an unextinguish'd hearth
Ashes and sparks, my words among mankind!
In other words, he hopes that the wind will blow his verses among all the people of the earth. He calls his words ashes and sparks: the leavings of death and the beginnings of life.