Thousand Characters

Chapter 4

[Original text]

Cold to summer, autumn harvest and winter storage.When the leap is more than a year old, Lu Lu adjusts the Yang.

【Note】

Cold comes and summer goes: refers to the alternation of the four seasons throughout the year.Autumn harvest and winter storage: Refers to grains sown in spring, grown in summer, harvested in autumn, and stored in winter.Leap: leap month.Yu: remaining.Year old: From a certain season of this year to this season of next year is one year old, that is, one year.Lu Lu: Lu Guan and Lu Guan, a device used by the ancients to adjust pitch and syllables, is equivalent to the current timpani.Yang: This refers to climate and phenology, which is what we usually call the 24 solar terms.The previous four sentences mainly talk about the scene when the universe was just born, and these four sentences talk about the changes of the four seasons of spring, summer, autumn and winter after the birth of the universe and their impact on crops.Ancient China was a big agricultural country, so people paid special attention to the relationship between climate change and crop growth.

【Interpretation】

The cold winter is over, and the hot summer will come, and the alternation of cold and heat is a year.Autumn is the season for harvesting crops, and winter is when crops are stored.The difference between the lunar calendar and the solar calendar is 11 days, and there are 33 days in three years. The extra month is placed in the fourth year as a leap month, and this year becomes a leap year.The ancients also used Liulu and Liulu to determine the 24 solar terms in a year.

(End of this chapter)