How is the poem Autumn Night written?

Autumn Evening is a seven-character quatrain (Wang Jian's work) written by Du Mu, a poet in the Tang Dynasty, and it is a poem of palace resentment. This poem describes a lonely maid-in-waiting, looking up at the cowherd and weaver girl on both sides of the Tianhe River on Tanabata night, fanning fireflies from time to time to relieve loneliness, reflecting the unfortunate fate of court women and showing the depressed mood of an unaccompanied and bored official girl.

Silver candle Qiu Guang cold painting screen,

A small fan flies to the firefly.

Day and night are as cool as water,

Sit and watch the morning glory and Vega.