Refers to the four seasons of spring, summer, autumn and winter. Cherish is cherish. Cherishing the four seasons means cherishing every moment. Four seasons is a basic concept in China's ancient calendar system, which is also popular now. Beginning of spring is the beginning of the four seasons in the trunk and branch calendar system. The source "The Book of Rites Confucius lives in seclusion": "There are four seasons in the sky, spring, summer, autumn and winter." One horizontal refers to the four seasons; All the year round is the agricultural season; Morning, day, evening and night of a day.