What does it mean to pick up a poem under the moon?

I wrote half a poem in the moonlight, describing modesty as unfinished.

Poetry, also known as poetry, is a literary genre with certain rhythm and rhythm, which expresses the author's rich emotions in highly concentrated language and reflects social life in a concentrated way. Poetry is the ancestor of literature and the root of art, and it is a literary genre that expounds the soul. Poets need to master mature artistic skills and express social life and human spiritual world with concise language, rich emotions and rich images according to certain requirements of syllables, tones and rhythms.