The original meaning of the line is quite simple: the lotus blossom has dropped its petals, and the lotus leaves have wilted. But would it be effective for the poet to simply directly say, “The lotus has dropped its petals, and its leaves have wilted”? This would be a very clear and straightforward way to put the meaning across. Poems arouse associations through their use of symbols, at the most fundamental level through the building blocks of language, words themselves. When he had written it, he looked at it for a bit, and felt it was too simple, not good enough. This wording emphasizes that the spring wind not only arrived, not only passed over the place, but also turned the trees and grass green. The word “green” is used to very great effect. This is what is meant by a “microstructure.” This combination of all this goodness and preciousness, with these verbs indicating fading, losing, or dilapidation, creates the sense of “a profusion of exquisite blossoms once lovely now rotting in weeds.”