The third chapter of Lu Song,BiGong,The Book of Songs is a concentrated embodiment of the sacrificial culture of the Zhou DynastyStarting from"Longqi Chengsi",it can be seen that the sacrifice outside the city made by Duke Xi of Lu was a prayer for grains rather than a sacrifice to Heaven outside the city."Longqi"was an accessory of the carriage awarded by the emperor,and the State of Lu used it for prayer for grains outside the city.Houji,as the god of agriculture,enjoyed the sacrifice in the poem,and the State of Lu's use of"Xingxi"to offer sacrifices to God and Houji also conformed to the etiquette."Chengsi"demonstrated the revival of the ritual and music system of the Zhou Dynasty in the State of Lu,as well as the promotion of the cultural spirit of respecting morality and courtesy.The sentence"Longqi Chengsi"is a specific expression of the State of Lu's revival of rites and music and its desire for prosperity.