The poem ode to the west wind can be divided into two parts. Why?

Shelley's ode to the west wind has five natural passages. The subject of the first three paragraphs is "you", and the content is a description and summary of the west wind. The first three paragraphs end with "O listen!" (Listen! )。 The theme of the last two paragraphs is "I", and the content is the association, emotion and dialogue between the author and Xifeng. From this point of view, this poem can be divided into two parts: the first part, the first three paragraphs, are similar to the "Fu" and "Bi" in Chinese poetry, that is, description and comparison; The second part, the last two paragraphs, is similar to the "rise" of China's poetry, that is, association and sublimation, which shows the highest state of the poet's thinking.