Why can't dogs be kept for eight years?

The ancients said that "dogs can't be kept for eight years" because they thought that once dogs were kept for more than eight years, if they were in contact with people for a long time, they would imitate people's behavior and even become "demons", endangering their owners' families.

In modern society, dogs are good friends of human beings. They are loyal and lovely and are deeply loved by people. However, ancient dogs were not so pleasing, and their life span was only eight years. "This sentence first appeared in 1000 years ago in the book of changes.

According to the book, livestock will infect people's spirituality after long-term contact with people, and then become lean and harmful to their owners. In addition, Tao Yuanming, a famous poet, recorded the story of a dog cuckolding its owner in "The Postscript of Finding God".

Obviously, the saying that "chickens don't have six years, dogs only have eight years" is superstitious. Animals are the supplement of human beings, especially dogs. They are very loyal and can do many things for human beings, such as search and rescue dogs and guide dogs. They are friends of mankind, not enemies!