Twelve earthly branches: Zi, Ugly, Yin, Mao, Chen, Si, Wu, Wei, Shen, You, Xu and Hai.
The ancients used heavenly stems and earthly branches to mark the year, indicating the month, day and time. Heavenly stems and earthly branches is also used to represent yin and yang, five elements, orientation transformation and human horoscope.
You should extract a description of evil spirits, such as
When ugliness meets unitary, that is, when the ugly year (Year of the Ox) meets unitary month and day, it will encounter some evil spirits. The next thing is the same thing, that is, yin meets the sea, Chen meets the child, ugliness meets the yin, noon meets the yin, the base does not meet the base, Shen meets the Chen, unitary meets himself, makes a promise, and does not say it at noon.
This description of evil spirits is generally used for testing eight characters or bulk shipments.