The Universal Map
The bagua (八卦, bāguà — literally "eight symbols") is an octagonal diagram that maps the fundamental forces of the universe. Each of the eight positions contains a trigram — a stack of three lines, either solid (yang) or broken (yin) — that represents a specific natural force.
The bagua is not just a feng shui tool. It is the foundation of Chinese cosmological thinking — a framework for understanding how the universe is organized and how its forces interact.
The Eight Trigrams
Each trigram has multiple associations:
Qian (乾) ☰ — Heaven, father, northwest, creative force, metal. Three solid lines. Represents pure yang energy — active, initiating, powerful.
Kun (坤) ☷ — Earth, mother, southwest, receptive force, earth. Three broken lines. Represents pure yin energy — passive, nurturing, supportive.
Zhen (震) ☳ — Thunder, eldest son, east, arousing force, wood. Movement and initiative.
Xun (巽) ☴ — Wind, eldest daughter, southeast, gentle penetration, wood. Gradual influence.
Kan (坎) ☵ — Water, middle son, north, danger and depth, water. Hidden depths and challenges.
Li (离) ☲ — Fire, middle daughter, south, clarity and attachment, fire. Illumination and awareness.
Gen (艮) ☶ — Mountain, youngest son, northeast, stillness, earth. Stability and meditation.
Dui (兑) ☱ — Lake, youngest daughter, west, joy, metal. Pleasure and communication.
The Two Arrangements
The bagua has two standard arrangements:
The Early Heaven Sequence (先天八卦) — Attributed to the mythical emperor Fu Xi. Represents the ideal, primordial state of the universe. Heaven and Earth are opposite. Fire and Water are opposite. The arrangement is balanced and symmetrical.
The Later Heaven Sequence (后天八卦) — Attributed to King Wen of Zhou. Represents the actual, dynamic state of the universe. The trigrams are arranged according to the cycle of seasons and the flow of natural energy. This is the arrangement used in feng shui practice.
Feng Shui Application
In feng shui, the bagua is overlaid on a floor plan to determine the energy of each area:
The south (Li/Fire) sector governs fame and reputation. The north (Kan/Water) sector governs career. The east (Zhen/Thunder) sector governs family and health. The west (Dui/Lake) sector governs children and creativity. The southeast sector governs wealth. The southwest sector governs relationships. The northeast sector governs knowledge. The northwest sector governs helpful people and travel.
Each sector can be enhanced by adding elements that correspond to its trigram — water features in the north, candles in the south, plants in the east.
Beyond Feng Shui
The bagua's influence extends far beyond feng shui. It is the foundation of the I Ching (易经), where pairs of trigrams form 64 hexagrams used for divination. It appears in martial arts (bagua zhang is a fighting style based on circular movement through the eight directions). And it provides the conceptual framework for traditional Chinese medicine's understanding of the body's energy systems.
The bagua is not a superstition. It is a model — a way of organizing the complexity of the universe into a comprehensible pattern. Whether the model is "true" depends on what you mean by truth. As a description of physical reality, it is wrong. As a framework for thinking about balance, change, and the interaction of forces, it has proven remarkably durable.