This book is a simplified Chinese version. The traditional Chinese version has been published for nearly a year, and it is quite popular. Some readers write to say that it is inconvenient to read traditional Chinese. They hope to publish the simplified Chinese version. This book is specially published at the request of the majority of readers, so as to facilitate readers who are accustomed to reading simplified Chinese characters. This book is a combination of Yi ology, astronomy, poetry, riddles and pictures. It is predicted that the great social and historical events will happen thousands of years from the beginning of Tang Dynasty to the Great Harmony of the world in the future. It is the most classic futurology masterpiece in Chinese history.