Is there any historical basis for the worship etiquette in Nirvana in Fire?

Some people say that it is the "Dong Zhizhen" in the Nine Worships recorded in Zhou Li, which is a funeral ceremony. I don't know if it is.

Whether it is or not, I think it has a historical basis. Although the play is overhead, the crew has some cultural backgrounds borrowed from the Southern and Northern Dynasties, which are not made up out of thin air. For this reason, the crew specially invited Zhang Xiaolong, an expert in ancient etiquette research in China and a professor of history, to follow the whole process. Grass instead of paper was designed by the etiquette team according to the sacrificial rites of the Southern and Northern Dynasties.