When the sky is dry, Tianyuan is angry, which is a four-column and eight-character term. In ancient times, astrologers used heavenly stems and earthly branches to match the year, month, day and hour of a person's birth, each of which was two words. These eight words are used together to calculate fate and good or bad luck in the future. The four pillars of the year, the month, the day and the hour are clean, and the ground support is clean, so the four pillars of the year, the month, the day and the hour are the same, and the fate is strange. For example, the eight characters are yiyou, yiyou, yiyou and yiyou, and the heavenly stems are all earthly branches. Tianyuan has a 10 group of eight characters. They are four silver, four Xin Mao, four Chen Geng, Keith, Ding Wei, Wuwu, Shen Bing, JOE, Yiyou and Guihai.
Most of the heavenly stems and pure lands belong to the image of spreading abroad and robbing wives and husbands. Four dryness, refined but not miscellaneous, is the gas of Tianyuan, and the sky is dry. It is auspicious, fierce and helpful to explain the complex relationship between the collision of various gods and punishments on earth, and to restrain evil spirits. It depends on whether luck is supporting or suppressing, and whether it is good or bad. This pattern is the most difficult to judge, because these ten cadres have different temperament preferences. It can be said that a prosperous time or a prosperous time is a good day. If the God of Wealth is killed by officials of the Sun and Moon, or if the God of Wealth is killed by officials of the Sun and Moon, his life span will be very short.