An introduction to the changes of Fang Jing's sixteen hexagrams

A divination method for predicting personnel originated from Confucian Classics and Teaching Instruments in the Han Dynasty, which spread to Jing Fang from teaching cadres and later evolved into various divination methods. Fang Jing changed his name to sixteen hexagrams, and later generations summarized him as four sentences: from the beginning to the fifth sentence, he did not move back and forth, flew down four times, and flew up and down to restore the body, which is an example of sixteen hexagrams.