There are people who live in the yang world but can serve in the yin and yang, and these people have a dual identity and can travel between the yin and yang worlds. This sounds strange and unbelievable, but from ancient times to modern times, many texts have recorded similar anecdotes.

The picture shows Yuan Lu Zhongyuan painting "The Ten Kings of Hell. Five Seven Yama King Figures".
The Tang Dynasty woman recovered from her illness and became a dementor female messenger
Tang Dynasty official Shangshu Tang Lin, in his book "The Chronicle of meditation", recorded such a story of traveling between the yin and yang worlds.
Emperor Fu, the wife of The Tang Dynasty's Yanzhou Qufu Ni, prayed to the Emperor of Taishan Province due to illness, and his condition soon improved. However, after that, she had an additional identity, the Messenger of The Underworld, and was ordered to absorb the souls of the human world.
Whenever Hades sent her to ingest the spirits of man, she would lie like a coma, motionless, almost for a day or two at a time. When she was done, she woke up and returned to her normal appearance.
Ming Tang Yin's "Banana Leaf Sleeping Girl".
Before and after, she ingested the spirit of many people. She said that once she was ordered to take in the soul of Pang Ling's youngest daughter. Because there was a prayer altar in front of the courtyard of the Pang family, where everyone chanted the sutra, she lingered for a long time and could not enter the door.
Later, during the rest of the chanting, she saw someone entering the sick woman's room with a candle, and she followed her in, only to take away the soul of Pang Ling's young daughter.
Someone asked why the Emperor Fu clan wanted to take the life of pang's youngest daughter, and she said that it was the fourth son of Taishan Fujun who wanted to take her life, and Fujun did not know about this matter.
The Emperor Fu clan also said a lot of hellish news. She said hell is well organized and well-behaved. She also said that there were many people in the prefectural government who complained about the yang people. However, as long as the accused person has some slight blessing, the messenger of hell will not be able to ingest his soul; if the person is guilty, it will be easy to ingest his soul.
It is also written in the Book of Meditation that at that time, the woman who was on an errand in Hades was still alive. Like her, there were three or four men serving in the prefectural government, but unfortunately, Tang Lin did not know their names and did not record them.
Celebrities from the judicial circles served as prefectural government judges
Tang Hangan's "Wrangling Horse Diagram"
At the end of the Qing Dynasty and the beginning of the People's Republic, there were also cases of Yang people crossing the yin and yang realms.
At that time, there was a celebrity in the judicial circles named Li Shu. When Li Shu was 19 years old, one night, he had a dream in which someone asked him for help, and he agreed. After four or five days, the dreamer reappeared in Li Shu's dream and took Li Shu in a carriage to interrogate the criminals in the prefectural court.
Since then, every afternoon or night when Li Shu sleeps, he will go in and out of the mansion in his dreams. In this way, he served as a judge (judge) in the prefectural government for four or five years.
After Li Shu's friends learned of his deeds, they compiled Li Shu's hades into the "Underworld Q&A". According to the records in the book, Li Shu was a subordinate of Emperor Dongyue and served as the president of the chamber, which governed the five provinces of North China. Dongyue Emperor, one of the Five Greats, was a god sent by the Jade Emperor God to the human world to investigate good and evil, and was also the superior of the Ten Heavenly Lords and the ruler of the underworld.
Li Shu is mainly responsible for judging the dead within ten months of death, judging their good and evil. Beyond the October deadline, other officials are responsible.
Li Shu said that he had served as a meditator several generations ago, so when the Eight-Power Alliance attacked Beijing, because there were many people who died in the military rebellion, the underworld was too busy, so he asked Li Shu to assist in the trial of the dead.
A brief description of the ghosts of the underground house
Li Shu meditated in Hades for four or five years, observing Hades in detail.
He said that there was also food in Hades, but it was not as delicious as in the Yang. The ghostly beings in the underworld can be full for many days after eating once, and they do not need to eat three meals a day.
There are festivals, socializing, marriages and births in the underworld; there are small-scale street shops that sell some food and groceries, and can be purchased with paper money burned in the sun.
The ghosts of hades were dressed the same as those of the Yangs, and there were also beds, quilts and other items, but Li Shu had never seen them use them. Because ghosts rely on everywhere, close their eyes and rest, they will not sleep for seven or eight hours like yang people.
Hades judgment cases are just and avoid killing and fornication
The picture shows the stone carved Baoding Mountain Cliff Statue located in Dazu, Chongqing.
There is punishment in the yang and there is punishment in the underworld. Li Shu said that the punishment in the underworld is not only numerous, but also a hundred times more cruel than the yang.
Someone asked, will the judgment of Hades also be wrongly decided? Li Shu replied, "There will never be a mistake. He said that because the prefectural government has a sophisticated investigation and conclusive evidence for the crimes of the undead, the prefectural government's judgment is very fair. Moreover, the most respected virtues in the prefectural government are filial piety for men and filial piety for women; the most hated karma is killing and fornication.
The Tang Dynasty dementors Huang Fushi and Li Shu of the late Qing Dynasty and early Ming Dynasty traveled through the yin and yang realms, bringing back many local governments and news, so that people had more understanding and awe of the other invisible spaces. These records also open a window for people who are keen to explore and understand other worlds.