The well-known domestic websites include Yuan Henryzhen, Longyin, Sizhubazi.com, etc. These have been established websites for many years. At present, it can be said that most domestic enthusiasts exchange and learn on these websites. Yuan Henryzhen (china95) has the longest website establishment, Longyin (longyin) has the most activities, and Sizhubazi.com (www.sizhubazi.com) is the most professional and comprehensive in theory and practice. It can be said to be the comprehensive website of Zhouyi numerology. You can check it out online. , for reference only. This is the essence of the websites I have collected over the years. I hope you will adopt it! ! ! ! "The Book of Changes" is an ancient Chinese philosophical book. It is a book that demonstrates and describes the laws of the operation of things based on the dualism of Yin and Yang. It classifies the properties of all things in the world, the theory of heavenly stems and earthly branches and the five elements, and is even accurate enough to classify things. Make more accurate predictions about future development. The Four Pillars and Eight Characters theory is the crystallization of the wisdom and wisdom of the vast majority of Chinese people on the natural movement of destiny for thousands of years. It is the most important invention in Chinese numerology. It has been verified by China for thousands of years and has been repeatedly worked hard by countless forecasters in the past. The important information and valuable experience obtained after practical research can also be said to be the epitome of China's extremely important civilization for thousands of years.