The texture of Xu Gong inkstone is peculiar, just like the blue sky, and the blue color is located in the inkstone hall, which is impartial, just right and meaningful.
This inkstone is decorated with carved cicadas, engraved pine trees, and engraved with the wonders of Qigong calligraphy and fine calligraphy. Although they don't seem to be related to each other, they are full of cultural atmosphere on the whole, giving people beautiful enjoyment. The inkstone hall is blue as running water and has some white spots. The author skillfully regards it as a flock of geese and names it after them, creating an elegant artistic conception. Coupled with the saying that there is a love for geese, it adds a bit of cultural atmosphere to people's minds.
(The above Wonders, Two Dragons Playing with Beads, Three Friends at the Age of Cold, and Goose Playing in the Water are the works of Wang Bingfu.)