Yuping hid the moon in the pot. What does koi fish mean by seeing the light in the mirror?

Yuping hides the moon in the pot, and the sky in koi fish's floating mirror means: Yuping hides in the pot like moonlight, and koi fish floats in the mirror like the sky. From Bai Yuchan's Remainder.

Original text:

The pavilion overlooks the pool and the spring breeze is intoxicated.

Pan Bo's poems are so poor that people suspect that he is water sprite.

Jade screen hides the moon in the basin, and koi fish floats and sinks in the mirror.

Peony peony returns, flowers bloom like boats.

Translation:

The pavilion overlooks the small pool, and the spring breeze is drunk every day. The magnificent and poor poetry world is suspicious of daffodils. The jade screen is hidden in the pot and the moon, while koi fish floats in the mirror. Peony peony returns, flowers bloom like a boat.

Extended data:

About the author:

Bai Yuchan (1 134 ~ 1229), formerly known as Ge Changgeng, was also known as Mr. Qing Zi, whose words were Bai Lao, Ruhui, January and Zhong You. In the Northern Song Dynasty, Qiong Guan appeased people in Xianwushang Village, Wuyuan, Qiongshan County (now Diandu Village, Shishan Town, Qiongshan County, Hainan Province).

I have read widely all my life, and I have read all my books. Calligraphy is good at seal script, official script and cursive script, and its cursive script flies like a snake; He is good at drawing bamboo stones and figures, and the painted plum bamboos and figures are lifelike; He also writes poems with clear pronunciation and mellow voice. His four-line poem "Early Spring" was included in the traditional classic "Poems of a Thousand Families". Debao articles, with simple and ancient characters, are unique and have been included in Sikuquanshu.