It means that the sun shines on the earth during the day, and the moon shines brightly at night. Life is rich and prosperous, that is, longevity and health. I wish you endless happiness and boundless happiness.
As for the inscription on the mirror, Bi Yuan also wrote about another Han mirror: "The right mirror is five inches in diameter. Its shape is different from the front mirror, and the inscription is also different. The front is a square column, this is a circle, and the seal script is Twenty-seven words: "The sun is dull, the moon is the same, and there is nothing wrong with it, and you are always happy. Everyone is prosperous, and everything is peaceful, but the old man is tired." "Le Wushi" is the same as the front mirror, so it is imitated and attached to it. It was copied by Meng Dong in Yimao, Weixian County, and it can be corroborated with the "Lao Fu Ding" in "Ji Jiuzhang". "In fact, the inscription on the Han mirror. There are more than one "Japanese days" in Chinese literature. For example, in the middle of the Western Han Dynasty, there is: "Japanese days are suitable for wine and food, and people will grow rich and noble. I wish to miss each other and never forget them for a long time."