This is a strange book that deeply interweaves the profound thoughts of Yili with the trajectory of individual destiny. It is said to have been written by Chen Tuan, the Taoist master of the Northern Song Dynasty. It is not a remote divination manual, but uses the sixty-four hexagrams of the Book of Changes as its sutra and the mathematical principles of Hetu and Luoshu as its latitude to construct a sophisticated and grand philosophical system of time and space. The core of the book is to convert the years, months, days, and hours in your life into numbers, and then use these numbers to determine hexagrams, allowing you to get a glimpse of the ups and downs and potential patterns of luck throughout your life between the good and bad movements of the hexagrams. It does not exaggerate strange powers and chaos, but uses calm mathematical deductions to integrate seemingly accidental life events into the orderly rhythm of the universe, allowing you to feel the depth and tranquility of understanding heaven and man while reading, and thus gain clarity and concentration in the changing world.
