Homophonic terrier "The dog spins silk wildly" comes from the story of a good night. Once upon a time, there was a dog who ate lotus root slices for the first time and didn't know how to chew them. He even spit out filaments, and everyone around him said, "Wow, this is really outrageous." This story is called "dogs spin out of the ordinary", which means sleeping just like English go-to-sleep. This is a homonym of good night, which gently reminds others that it is time to go to bed with a story.