Interpretation of six nouns

Liu Ren was a court occupation in ancient China.

One of the methods to predict bad luck by using yin-yang and five elements. Together with Dunga and Taiyi, they are called Type III. The five elements (water, fire, wood, gold and earth) are headed by water; Of the heavenly stems (A, B, C, D, E, Ji, G, Xin, Ren and Gui), Ren and Gui belong to the water, which is Yang water and Yin water, hence the name Ren.

Among the sixty Jiazi, there are six (Renshen, Renwu, Renchen, Renyin, Renzi and Ren Xu), hence the name. Six main seven hundred and twenty lessons, generally summarized as sixty-four lessons. Its occupation, with two wooden plates, there are twelve points in the sky, called the sky plate, and there are twelve points on the ground, called the site. When two disks overlap, turn the sky disk to get the position and time of the main branch, so as to judge good or bad luck.

Tracing the history of Liu Ren:

The origin of Six Benevolence is very early, which is recorded in the Spring and Autumn Annals of Wu Yue and Yuejueshu in Han Dynasty, and the classic of Six Benevolence Style and the explanation of Six Benevolence Sign are found in the Annals of Sui Shu Classics. The title of Liu Ren is also mentioned in history books, such as Tang Shuyi Wenzhi and Song Shiyi Wenzhi.

The lost records of Si Ji recorded Zhu Bi's Exhibition of Liu Ren in Song Dynasty, and quoted a cloud: "Although it is a lost collection of Song Zhi, there are as many as 82 in Zheng Qiao's General Records.

There are 89 copies of Jing Ji Zhi and 8 copies of Qian Shu Gu Tang Bibliography 18, which have been lost for a long time. This is an example from the Song Dynasty engraving, and it is copied as before, with the preface of Six Noble Persons. The case revealed the names of six people, but its purpose was not announced at all times. However, Zhou Li Li Zhe's Book in the Palm built the nest of dead birds with the number of stars on the 10th, 12th, 12th and 28th, that is, it was not a book of three generations. This is the only proof, which is different from the saying that the five elements begin with water, aquatic and one becomes six. "