Yes, Yijinjing was indeed created by Taoists in Tiantai, Zi Ning in the late Ming Dynasty. He combined the advantages of various martial arts schools, guided by the gradual behavior of Qi, visited Buddhism, Taoism and Confucianism all over the world, and absorbed the essence of Qigong's mind, so as to create this Yijinjing, which is based on Qigong's mind. In the Qing Dynasty, due to the widespread accumulation of good deeds, social unrest and miserable life in South Shaolin Temple, most of its disciples were folk Boxers or some charlatans and chivalrous men, but they were not real human monks. Later, they participated in Hong Men, Heaven and Earth Society, White Lotus Society and other non-governmental organizations. While punishing the disorderly party, the imperial court also pursued South Shaolin, which was finally destroyed by a war. Because before this, Shaolin people had heard that the court would punish the disorderly party. The abbot of South Shaolin organized a group of monks to practice Shaolin Boxing and other kung fu in order to protect the safety of some Jianghu knights and make everyone healthy, and also came up with some methods for everyone to practice, including Yijinjing. Later, it became more and more popular in rivers and lakes, so that many people wanted to get this Tianzhu magical power. It is said that practicing this kind of kung fu can cure diseases. Therefore, Shaolin abbot had to widely print Yijinjing and spread it among the people. It also makes people misunderstand that this is the kung fu of Shaolin Temple. Later, in modern times, when many people practiced this technique, they thought that the previous writing method was too complicated, so they changed it. They also thought that this method was somewhat different from the pulp-washing sutra, so they combined them into one and named it Yijinjing Sutra. This classic is a collection of many people's experiences, which is what we see today. It does exist, but the single ancient book Yijinjing still exists. I saw it in the library the other day, but unfortunately there is no vernacular and I can't understand it. I have never heard of a single pulp washing.