Artwork description: The work takes the millstone as the original shape, through the delicate treatment of glass, and the rough texture of rock color material to carry out a material fusion and collision. To the function of the millstone, to retain the symbolic symbolism of its shape, Yang to the shape of a circle, its sexual movement; Yin is shaped by a square, and its nature is static. It symbolizes the Chinese ancestors spring planting, summer hoing, autumn harvesting, winter storage, sunrise and sunset, which is the Yin and Yang rhythm of the rest. Coexisting closely with heaven and earth, the gratitude and reverence for heaven and earth have been passed down from generation to generation, and gradually formed a national spiritual core of reverence and gratitude for heaven and earth, which has been accumulated as the cosmology of "harmony between heaven and man". This emotion guides the Chinese nation to observe heaven, earth, and man in a holistic, continuous, and dynamic way, and to coexist harmoniously with heaven and earth.