This is a couplet, which means to do things well, keep a normal heart, live a tolerant life and leave a consistent and harmonious interpersonal space for yourself and others.

Couplets are one of the traditional cultures of the Han nationality. They are antithetical sentences written on paper and cloth or engraved on bamboo, wood and columns. The antithesis of couplets is neat and even, which is a unique cultural and artistic form of Chinese language. According to legend, couplets originated from Meng Changjun, the master of Shu after the Five Dynasties. Couplets are the traditional cultural treasures of Han nationality in China.

Couplets, also called couplets, are named after the pillars hung in halls and houses in ancient times. They are commonly known as even characters, couplets, couplets and doors. The name "couplets" began in the Ming Dynasty. It is a kind of dual literature, which originated in Fu Tao, and it is a national style that uses the characteristics of Chinese characters to write. Its wonderful combination with calligraphy has become a colorful artistic creation of the Chinese nation.

Spring Festival couplets have a long history. It is said that they originated from Meng Changjun, the master of Shu after the Five Dynasties. He inscribed on the peach symbol on the door of the dormitory: "New Year's Eve, Qing Yu, the number of festivals, Changchun", which means the word "inscribed peach symbol" (see "Shu Lang"). This is the earliest couplet in China and the first Spring Festival couplet. [3]? The basis of this theory is that Liang Zhangju, a couplets scholar in Qing Dynasty, quoted Lang from Couplets Conghua. However, according to the textual research of the General Theory of Couplets, Liang Zhangju changed "Ci" into "Fei Ci" and "Shu Lang Lang" when quoting. Different historical materials in the Song Dynasty have different opinions on this, and some people classify the author as the son of Meng Yun. So who is the author of this pair of Spring Festival couplets is still an unsolved case.

As a custom, couplets are an important part of China traditional culture. In 2005, the custom of couplets was listed in the first batch of national intangible cultural heritage in the State Council, China. The custom of couplets is passed down and spread in Chinese-speaking areas and ethnic groups with cultural origins of Chinese characters, which is of great value for promoting Chinese culture.