Where does the custom of burning paper cows, paper horses, paper houses, etc. at funerals come from after people die? When did it start? Is there anything particular about paper cows and paper horses?

At the foot of that mountain, the ancestor was a man riding a horse and met a woman riding an ox. They got married and gave birth to eight sons, and then these sons spread their branches and formed different ethnic groups.

Ethnic groups such as the Khitan Nuzhen are all related to the Eight Banners and Eight Banners.

So after death, it means to leave as you came.