The Eight Gates (八門 — Bā Mén)
In Qi Men Dun Jia, the universe is modelled as a four-layered system: the Heaven Plate (天盤) of Nine Stars, the Earth Plate (地盤) of fixed Nine Palaces, the Man Plate (人盤) of Eight Gates, and the Deity Plate (神盤) of Eight Gods. The Eight Gates occupy the Man Plate, representing human affairs, intentions, and the quality of activity in each direction. They are the most practical layer for everyday divination and date selection.
The eight gates are: Kai Men (開門/Open Door), Xiu Men (休門/Rest Door), Sheng Men (生門/Life Door), Shang Men (傷門/Injury Door), Du Men (杜門/Hide Door), Jing Men (景門/Scenery Door), Si Men (死門/Death Door), and Qing Men (驚門/Fear Door).
Fixed Palace Positions (靜盤)
In the static chart, each gate has a natural home palace:
- Kai Men (開門) — Northwest Qian Palace (乾6): Metal element
- Xiu Men (休門) — North Kan Palace (坎1): Water element
- Sheng Men (生門) — Northeast Gen Palace (艮8): Earth element
- Shang Men (傷門) — East Zhen Palace (震3): Wood element
- Du Men (杜門) — Southeast Xun Palace (巽4): Wood element
- Jing Men (景門) — South Li Palace (離9): Fire element
- Si Men (死門) — Southwest Kun Palace (坤2): Earth element
- Qing Men (驚門) — West Dui Palace (兌7): Metal element
- The Central Palace (中5) has no gate.
Three Auspicious Gates (三吉門)
Kai Men (開門) — Open Door: The most auspicious of all gates. Metal element, corresponding to Qian/Heaven. Kai Men represents leadership, authority, openness, and new beginnings. Historically, almost all founders of Chinese dynasties began their campaigns from the northwest Qian direction — hence this gate's name. Favourable for: setting up a new business, long-distance travel, military campaigns, marriage, examinations, seeking medical treatment, import/export, and property transactions. The Open Door indicates frank, open-minded personalities — managers, entrepreneurs, judges, and surgeons. In health context: head, lungs, large intestine, spine, and skin are implicated. Kai Men is most prosperous in autumn (Metal season), especially the months of Xu (戌) and Hai (亥).
Xiu Men (休門) — Rest Door: Water element, North Kan Palace. Xiu Men governs recuperation, administrative work, family harmony, and seeking the assistance of superiors. The name derives from the autumn and winter resting of all creatures. Particularly good for meeting leaders and nobles, wealth-seeking through official channels, marriage, and commercial construction. Its energy is restful and reproductive — best for consolidation rather than aggressive action.
Sheng Men (生門) — Life Door: Earth element, Northeast Gen Palace. The door of commerce, prosperity, real estate, and biological flourishing. Classical texts state: "When seeking wealth, go towards Sheng Men's direction." Sheng Men corresponds to early spring — the moment when all life reawakens. Particularly auspicious for property dealings, agriculture, animal husbandry, and matchmaking. Most prosperous during the transitional Earth months (丑/寅), especially auspicious in summer. Not favourable for burials.
Three Inauspicious Gates (三凶門)
Si Men (死門) — Death Door: Earth element, Southwest Kun Palace. Si Men governs endings, tombs, land matters, and calamity. Classical teaching: "For burial and hunting, the Death Door direction is strongest." Si Men is not universally negative — it has specific uses where its qualities of finality and stillness are appropriate. However, it generally indicates loss, cessation, and decline for most undertakings.
Shang Men (傷門) — Injury Door: Wood element, East Zhen Palace. Governs all transportation, physical conflict, sports, indirect wealth, gambling, and debt collection. Classical teaching: "Injury Door specializes in fighting and catching thieves." Appropriate for: demanding payment, apprehending criminals, competitive sports, and risky financial speculation. Inauspicious for: business setup, marriage, construction, or assuming official posts.
Qing Men (驚門) — Fear Door: Metal element, West Dui Palace. Governs litigation, disputes, lawsuits, and sudden frights. Classical teaching: "Fear Door indicates quarrelling and litigation." While generally considered inauspicious, Qing Men has its uses in legal strategy and the apprehension of wrongdoers.
Two Neutral Gates
Du Men (杜門) — Hide Door: Wood element, Southeast Xun Palace. The door of concealment, secrecy, and escape. "Du Men is good for refuge and hiding." Governs hidden matters, covert operations, tax affairs, and industrial injuries. Useful for evasion but inappropriate for forthright action.
Jing Men (景門) — Scenery Door: Fire element, South Li Palace. A complex gate governing brilliant facades, documents, examination papers, certificates, and grand social occasions. Jing Men has a quality of magnificent appearance masking hidden dangers — like a gorgeous nightclub or an impressive document that conceals problems. Useful for ceremony, strategy planning, and administrative paperwork.
Gate-Palace Interaction Principles
The relationship between the gate and its host palace (the palace it occupies in the dynamic chart) determines the effective quality. Four key interaction types:
- Door Ke Palace (門迫): The gate's element controls (克) the palace element. For an auspicious gate: the auspicious quality cannot fully express — things are forced. For an inauspicious gate: the bad effects become worse.
- Palace Ke Door (宮制門): The palace controls the gate. Both auspicious and inauspicious gates are weakened — neither good nor bad can fully manifest.
- Door Births Palace (門生宮): The gate produces the palace element. Auspicious gates become even more auspicious. Inauspicious gates become more dangerous as they gain strength.
- Palace Births Door (宮生門): The palace nourishes the gate. Also amplifies the gate's inherent nature, positive or negative.