"The crab is peeling my shell, and the notebook is writing me. I landed on maple leaves and snowflakes all over the sky. And you are thinking about me. " What does this sentence mean?

From the first of the three quotations of Wuhan University, it means that you will fall in love with me only if the world is upside down.

Only when the world is upside down can you fall in love with me and read in reverse. I peel crab shells, I write notebooks, and snowflakes and maple leaves fall on me all over the sky. I miss you. This is a typical unrequited love, expressing the author's helplessness to reality. These are impossible, crabs can't peel my shell, notebooks can't write me, maple leaves and snowflakes can't fall on me, and you can't think of me.

I fell on the snowflake on the maple leaf all over the sky, and the romantic atmosphere of this sentence began to emerge. The color in the poem has also begun to be reflected in this work. Warm red and cold white are like passionate love meeting ruthless indifference. The ubiquity created by that sentence "all over the sky" is like a kind of desire, and hope spreads around that person and always surrounds her (him).