I. Symbol Composition and Philosophical Core

As a crystallization of ancient Chinese wisdom, the Bagua is a symbol system that interprets the essence of the universe. It consists of eight trigrams each composed of three lines, with each line being either “unbroken” (yang) or “broken” (yin). Through the combination of these two basic forms, it constructs a model of cosmic operation where yin and yang interact and mutually constrain each other. Based on binary logic, three lines can generate 2³=8 permutations, forming the basic framework of the Bagua. This concise yet sophisticated symbol structure provides a concrete carrier for thoughts on the origin of the world in Chinese philosophy.

II. Multi-domain Connections and Applications

The Bagua is not limited to a single field but is closely linked to many aspects of ancient society. In Shang and Zhou religious activities, it was the core of I Ching divination, playing an important role in communicating with heaven, earth, and gods. It is also interrelated with traditional philosophical concepts like Taiji and the Five Elements, jointly forming the theoretical basis of ancient Chinese cosmology. In practice, its influence extends to various fields: corresponding to stellar movements in astronomy, used for geographical surveys in Feng Shui, corresponding to human meridians in traditional Chinese medicine, and spawning martial arts styles like Tai Chi and Baguazhang, thus becoming an important link between natural sciences and humanities.