Introduction to Jingxin Pond: There is a black heart-shaped stone in the pond. Legend has it that the water in the pool can cleanse and filter the mind, and can calm the mind and nourish the nature, so it is called "Jingxin Pool". There is a huge stone on the west side of the pool called Dagushi, with the word "Qingyou" engraved on it. There is also a very flat stone under the big solitary stone called "Qingliang Stone". It is named because people feel a very cool feeling when sitting on this stone in summer. There are also poems by Qing Dynasty poet Zheng Banqiao engraved on the stone. .