What image did Nalan Xingde Baidu, the author of Jiuquanzi, use to thank for his words, and what kind of environment did he create?

Thank you, but the moon is as bright as water. The smell of the seal is gone, but I still didn't sleep, and the crow crowed early. Tea, the latest flower, has withered and spring is gone. The bright moon shines like water on the dead tea. The fragrance of seal script is slightly fragrant and the embers are full. Why don't people sleep? Sad! Crows crow early and stand till dawn! So sad.