Song Guoyuan's masterpiece.

He has many years' research practice in the Book of Changes, and has published many papers related to the Book of Changes in different journals, such as The Theory of Sand and Water, Exploring the Origin of Golden Lock and Jade Pass, The Theory of Funeral, The Theory of Clear Capsule Funeral, The Theory of Combination of Golden Lock and Xuan, Yang Gong's Twelve Fallen Canes, Dongling's Talk about Yin and Yang, etc. , and won the prize. His first book, Biography of Golden Lock and Jade, caused a sensation in the field of Yi studies. There are also works such as Collection of Feng Shui Cases of Connecting Yin and Yang, Illustration of Jin Suoyu's Ventilation and Water, Comprehensive Analysis of Eight Characters' Numerology, Analysis of Kong Xuan's Feng Shui, Analysis of kim hyun's Compass, etc., which have won favorable comments from many Yi-ology experts.