When entering a country, asking about the prohibition means asking about the prohibition first, so as not to violate it. Actually, the ancient word of "territory", in the book of rites and Quli, says: "When entering a country, you ask about the prohibition, while when entering a country, you ask about the customs, but when you get started, you ask about the taboo." Kong Yingda said: "When entering a country, you ask about the prohibition ... Actually, the head is also defined. The prohibition means that politics and religion in junior high schools are taboo. When entering a foreign country or a region, you should first ask about its customs, so as not to contradict it.

When entering the door, you should first ask about the names of your host's ancestors, so as to avoid them when talking. It is called "Asking about taboos when entering the country". In the Book of Rites, "Asking about customs when entering the country, asking about taboos when entering the door." Kong Yingda said: "Asking about taboos when entering the country." Don't be afraid of your ancestors' names, so you should be a prophet and avoid them. "