What should I think of the yellow calendar?

The main contents of the Gregorian calendar include: twenty-four solar terms, avoiding good and bad luck, rushing evil, combining harm, receiving sound, dry branches, twelve gods, on duty, fetal gods, stars, moon phases, exorcism, Peng Zuji, six splendors, nine planets, fleeting time, Chinese medicine, mysterious nine planets, week, twelve zodiac signs, orientation and so on.

In the Gregorian calendar, "Qinglong, Tiande, Yutang, Siming, Tang Ming and Jingui" in the Twelve Gods are called six zodiac days, and "Removal, Danger, Determination, Persistence, Success and Openness" in the Twelve Duty Days is also called the Little Zodiac Day. When the six gods of the zodiac are on duty, everything is appropriate, and they will not avoid evil, that is, "the zodiac is auspicious."

Note: The traditional art of mate selection in China was quite mature as early as the Qin and Han Dynasties. At that time, the contents that should be avoided when waiting for the weather recorded in Japanese books involved not only daily activities such as marriage and travel, but also military affairs such as attacking and sending troops.

In addition to calculating calendars and observing astronomical phenomena, official astronomical institutions in past dynasties were also responsible for handling selection matters. For example, in the Eastern Han Dynasty, the duties of Tianguan included: "When holding sacrifices, funerals and weddings in any country, we should broadcast the taboos of good days and festivals in time."

Later, in the official astronomical institutions, a department dealing with such affairs appeared. In Song and Yuan Dynasties, it was called Sanshi Division, and in Qing Dynasty it was called Missing Division. At the beginning of the Qing Dynasty, this teacher's duty was: "Look at the architecture of the inner and outer palaces, see the geomantic omen of mountains and rivers, promote marriage, choose auspicious days, adjust the quality of pots, manage the entrance of the building, and pay attention to the direction of setting up special schools." On the surface,