What's the point of killing pigs?

1. Ceremony before killing Nian pig: Before killing Nian pig, the butcher will light a column of incense next to the pigsty, insert a candle, then burn a pile of paper money, and finally kowtow three times respectfully. The purpose of this is to thank the pig god for blessing the pigs of the host family to spend this year smoothly, and to pray for good pigs in the coming year ... 2. Taboo to kill pigs in the new year: 1. Butchers don't kill people. The butcher must kill the pig with one knife, or something terrible will happen to the host family in the coming year. 3. Children can't watch when killing pigs, probably for fear of scaring children. 4. To kill a pig, you must have a head and a tail. The so-called head and tail are the places where the pig's head and tail are cut off, which must be seen by the host family, otherwise the host family will have to live in fear next year.