Four images and eight diagrams spread from Chen Tuan until the Northern Song Dynasty. It used to be written records, no images. Didn't the ancients before Qin and Han dynasties have four images of gossip? How could it not be? I just lost it. There have been several troubled times here, the Spring and Autumn Period and the Warring States Period, the Five Chaos in China, and the Five Dynasties and Ten Kingdoms. These three troubled times have caused great damage and loss to China culture. One of them is the loss of Yi-ology. After the Northern Song Dynasty was established in Zhao Kuangyin, Chen Tuan felt that the world was unified and peaceful, which made the pictures of river maps, Luo Shu, Tai Chi, Four Elephants and Eight Diagrams spread in his hands. But the so-called communication, only pictures, no deductive process, that is to say, what kind of connection between these pictures, no one can understand. Even the names of those pictures are controversial. Because there are no names on the map.
Such as Luo Shutu. The name "Luo Shu" has long been recorded in ancient books, but there is no mention of his content. Specifically, the characters with nine numbers are not called Luo Shu, but called Tang Mingshu or Jiugong Shu, that is, they are not called Luo Shu. Listen, it's no trouble at all. Then the problem is coming. The ancient book says, "A painting on a river map leads to a book". Is the book of Luo a number of halls or nine palaces? This question has been debated for more than 1000 years. It was first provoked by Ouyang Xiu in the Northern Song Dynasty. Since then, everyone has been arguing endlessly.
Second, the treasure map came out.
The so-called biography of Chen Tuan, in fact, belongs to the esoteric biography, and the scope of the knower is also very small, which is invisible to ordinary people. The first picture that ordinary people can see is the "innate gossip" carved by Shao Yong in A Quiet History of Huang Ji. Around this time, in Zhou Dunyi's book "Tai Chi Diagram", "Tai Chi Diagram" came out. However, Zhou Dunyi's Tai Chi map is not a Yin-Yang fish Tai Chi map. The Taiji diagram of Yin and Yang fish is well documented, which originated from Wing Xuan written by Zhang Xingcheng in the Southern Song Dynasty, but it is not called Taiji diagram, but called "congenital diagram". It was already the Ming Dynasty when the picture of this kind of yin-yang fish was called Tai Chi.
In Liu Mu's Yi Shu Gou Yin Tu, which was a little later than Zhou Dunyi, pictures of "River Map" and "Luo Shu" appeared, which was also the earliest black-and-white river map. But the name of the picture is inverted. Mark the river as Luoshu and Luoshu as a river map. Look at this mess. At that time, Hutuluo was called "Dragon Map", and it was only when Wu Mi, a disciple of Liu Mu, arrived that it was dedicated to Song Renzong.
But such as "The Eight Diagrams the Day After Tomorrow" and "Sixty-four Guas" until Zhu collected them and summarized them into his book "The Original Meaning of Zhouyi". But there is another episode, that is, these pictures of Zhu were provided by one of his students, Cai, who was entrusted by Zhu to go to Sichuan to look for the book "He Tu Luo". Legend has it that Cai got three pictures and only gave Zhu two when he came back. The river map was still fake, and the real river map and Taiji map were kept secret. Whether this matter is true or not becomes an unsolved case.
Knowing the confusion in the historical inheritance of Yi-ology, we can understand the mistakes in the inheritance of Yi-ology. Since the appearance of these images, scholars of Yi studies have tried to explore the relationship between them. Unfortunately, I haven't sorted out any clues.
Third, the truth began to appear.