Persimmon, "persimmon persimmon" is the best. "Youyang Miscellaneous Notes" records: "The root in the wood is solid, and the persimmon is the best." Persimmon pattern, the ancients thought that persimmon pattern was very strong and had the meaning of the five elements of the universe. Persimmon door and window grids were popular from the Warring States to the Han Dynasty, indicating that everything went well.