Since ancient times, there has been a custom of burying things to worship the land in China, such as "There is a year to bury the soil, but there is no year to bury the soil" in Lu's Spring and Autumn Annals. Before papermaking was invented, paper money was just not used. Before the Han dynasty, people imitated the way of offering sacrifices to the ground and made the objects of the deceased into funerary objects and buried them in the graves of the deceased. It was popular in the Han dynasty. The so-called "money-losing" means that the living buried pottery money and five pieces of money in ceramic bins buried with the dead. This custom has been passed down to this day. "History of the South" records that when Zhao monk Yan died, he said to his disciples, "I'm leaving tonight, and there's a lot of money in the pot, which is to buy the way to the underworld; A candle shines on a seven-foot corpse. " Sure enough, he left that night. After the death of a Han folk legend, the soul went to Huangquan Road, to Naihe Bridge, and drank Meng Po's "ecstasy soup" to reach the underworld. Along the way, there are many gates of hell, which need money to manage. That GREAT GHOST, imp, unjust death, chihuo, etc., swarmed with new visitors, tearing their clothes and groping for their pockets, just like the outlaws in the world who stopped drinking when they cut the path for passers-by: "I opened the road and planted the trees; If you want to walk over there, leave the money to buy the road. " Therefore, during the funeral for the deceased, his family scattered yellow paper all the way, which is also called "money for the road". It seems that before the Han Dynasty, the money for buying roads was probably "hard currency".