The author has already published on b17.ru several articles concerning the applied methods of Chinese metaphysics - Yijing. Now a little theory and history. Yijing, also known as Peremenology, is the science of change, based on the objective laws of nature, studying the patterns of movement, types of transformations, development cycles of astronomical phenomena and geophysical processes that have one or another type of energy. Yijing is the basis of classical Chinese natural philosophy , which was set out in writing in China in the 8th-7th centuries. BC, and its origin dates back to the 3rd millennium BC. The basics of Icynicism in those ancient times were passed down by inheritance in a narrow circle orally or with the help of signs on turtle shells. The main tasks that the ancient Chinese solved with the help of the science of change were aimed at survival - providing themselves with necessary items and food: agriculture, plant growing, hunting, war. I Ching is the main canon of the science of change. It is based on a symbolic-numerical system in which natural phenomena and processes are encrypted, the order of their interaction with each other and the nature of the impact on humans. In the 2nd century BC. The Yijing was included in the code of canons of Confucianism. Since then, the science of change has been widely and successfully used by the Chinese, and has survived to this day, having formed the mentality of a modern resident of the Middle Kingdom. Its principles can be traced in the basis of many more familiar scientific disciplines: astronomy, mathematics, medicine, agronomy, philology, philosophy, music theory and military affairs, and even genetics. Like any science, Yijing has a practical, applied aspect, consisting of several sections: Feng Shui, Ba Zi Suanming, Qi Men Dong Jia and some others. Since Yijing does not have a scientific status in Western culture, experts in this field often use the phrase “Chinese metaphysics.” In the West, Yijing has not been popularized either as a scientific discipline, or as a metaphysical, or as a philosophical doctrine. The range of applied problems that it successfully solves is also not clear or known to a person of Western mentality. The consequence of silence or insufficient coverage is usually various kinds of distortion and speculation. This is what happened with change science everywhere except Southeast Asia. For those who are not tired, you can read further in the article Where are the roots of Yijing and European culture on the Studio website