What does "Shaxi" mean in ancient books?

In China's traditional old calendar (yellow calendar), the expression "West" means that you should not go to the west or do business, and avoid doing things in this direction. Dongsha, Shaxi, Anshan and Shabei mean that an animal is not suitable for going to a specific direction at a specific time ... Every day, such as "running monkeys and running chickens to the north" and "running chickens", that is, the meridian collides, the ugliness does not collide, Shen Yin collides, You Mao collides, Chen Xu collides and Hayes collides, and then twelve places are matched with the twelve zodiac signs, namely rat, ugly cow, yinhu, maotu and Chenlong. Therefore, every Children's Day, and the rush at noon, are "running horses"; Yin, Shen, that is, "Running Monkey", is set up in this part of the yellow calendar to tell people not to choose those days that conflict with their genus. The old monster who often lived in Four Seasons became "Four Seasons Yin Qi". It is extremely vicious and can travel in the sky. It is forbidden to drill, camp and move in reasonable places. If you accidentally violate this point, your descendants and livestock will be hurt. However, the location of the old evil spirit is easy to find. From the second day, due south, retrograde east, one person a day, four days a week, and so on. Heart is one of the main branches, ranking 58th. The former is Geng Shen and the latter is Ren Xu. On the five elements of yin and yang, the sweetness of heavenly stems belongs to yin gold, and the unity of earthly branches belongs to yin gold, which is a good ratio.