Introduction to Gourd Pond: It was once the place where Lu You and Tang Wan met. Lu You wrote a poem: "The spring waves under the sad bridge were green, and it was once the shadow of a startled grand." describing Tang Wan's beautiful and carefree appearance and the pool water. Cheng Jing, as if he saw a beautiful figure in the pool, felt doubly sad. There is a poem about the gourd pond in Shen Garden: "The pitiful feelings are full of lovesickness, and the pond is sad for all eternity. How many tears are shed on the hairpin head, the grass in Shen's home is still sad."