"Endless tender soup springs, eternal romantic Huaqing Palace" is a poem written by Bai Juyi, a poet in the Tang Dynasty, to bid farewell to ancient grass. The "gentle soup spring" in the poem refers to the clear hot spring water in Huaqing pool, where bathing can make people relax physically and mentally and feel warm and comfortable; "Eternal Romantic Huaqing Palace" refers to the historical background and cultural atmosphere of Huaqing Palace, which is an ancient building with a long history and cultural accumulation. This sentence expresses the praise for Huaqing Pool and Huaqing Palace, and cherishes history and culture.