Introduction to Inkstone Lake: There is an ancient well from the Ming Dynasty next to the silk burning furnace in the southwest of the Confucius Temple in Beijing. The water was shallow and sweet. According to legend, if feudal literati could drink a cup of the "holy water" from the ancient well and use the well water to grind ink, they would be able to Able to write and think like a spring, and flowers bloom in his pen, and he was named on the gold medal list. For this reason, Qianlong named it "Inkstone Lake".