What do you mean covered with mud?

The explanation of mud painting in the yellow calendar is that it is suitable for repairing houses; Answer: Repairing, filling and plastering means repairing houses and burying potholes. In the past, houses were all adobe houses, and plastering meant repairing houses.

According to legend, the yellow calendar was created by the yellow emperor, so it is called the yellow calendar. In ancient times, it was calculated and published by Qin Tian Jian, so it was also called the imperial calendar. Its content guides farmers' farming opportunities, so it is also called farmer calendar. Folk commonly known as the general book. However, because the word "book" and "lose" in Tongshu are homophonic, it is also called "Tong Sheng" because of taboo. The solar calendar is based on the lunar calendar in China, and there are many calendars indicating the good or bad of a day. The main contents of the Gregorian calendar are the schedule of the 24 solar terms, the good and bad luck of each day, and the luck of the zodiac.