古代把土神和祭土神的地方、日子和祭礼都叫“社”。由“社”产生出“稷”,“稷”是五谷,也指“五谷神”。因为土地、粮食关系到国家兴亡、百姓安危,所以从夏代开始便有“立社”(筑社稷坛)的风俗,并规定时间祭祀社神。祭祀社神的日子称社日,一般在春分、秋分前后几天举行,分别 In ancient times, the place, day, and sacrifice of the Divine God and the Sacrifice of Earth were all called “society.” From the “society” produces “稷”, “稷” is the grain, also refers to “the god of grains.” Because the land and food are related to the rise and fall of the country and the safety of the people, the customs of the “Lishe” (the building of the community) were established from the Xia Dynasty, and they stipulated the time to worship the God of the community. The days of the sacrificial offerings of the gods are called social days, and they are usually held several days before and after the equinox and the equinox.