The Dynamic Map of Time and Space (San Yuan Jiu Yun)
The Cyclic Nature of Qi
Unlike the static Eight Mansions system, Xuan Kong Flying Stars tracks the movement of celestial energy across time. The system is based on the Three Cycles and Nine Periods (三元九運) , a 180-year grand cycle where the "Ruling Star" changes every 20 years.
🧬 The Theoretical Framework (三元九運核心理論)
According to Shen Shi Xuan Kong Xue (沈氏玄空學), the Grand Cycle is an astronomical simulation of the alignment of the planets and the Big Dipper. One **Grand Cycle (大元)** lasts 180 years, consisting of three **Cycles (元)** of 60 years each (Jia Zi cycles):
Upper Cycle (上元): Periods 1, 2, 3
Middle Cycle (中元): Periods 4, 5, 6
Lower Cycle (下元): Periods 7, 8, 9
Each **Period (運)** lasts 20 years, during which one star becomes the "Ruling Star" or "Wang Star" (旺星). This star enters the center of the Nine Palace grid and determines the quality of Qi for that era.
Xuan Kong Fei Xing (玄空飛星, "Mysterious Void Flying Stars") is a subset of the San Yuan (三元) school of classical Chinese Feng Shui. The system maps the invisible patterns of Qi occupying a building through time and space.
Key Classical Texts (經典文獻)
Text
Author
Dynasty/Era
地理辨正 (Di Li Bian Zheng)
蔣大鴻 (Jiang Da Hong)
Late Ming / Early Qing
歸厚錄 (Gui Hou Lu)
蔣大鴻 (Jiang Da Hong)
Late Ming / Early Qing
天元五歌 (Tian Yuan Wu Ge)
蔣大鴻 (Jiang Da Hong)
Late Ming / Early Qing
沈氏玄空學 (Shen Shi Xuan Kong Xue)
沈竹礽 (Shen Zhu Ren)
1930s
大三元玄空錄
談養吾 (Tan Yang Wu)
1920s
大三元玄空實驗
談養吾 (Tan Yang Wu)
1920s
Four Authoritative Classics for 81 Combinations
飛星賦 (Fei Xing Fu - Flying Star Commentary): Core interpretations of star interactions
紫白訣 (Zi Bai Jue - Purple White Scroll): Essential for understanding star combination meanings
玄機賦 (Xuan Ji Fu - Classics of Mystical Stars): Advanced star combination principles
玄空秘旨 (Xuan Kong Mi Zhi - Secret Decree of Xuan Kong): Secret principles and interpretations
Historical Lineage
蔣大鴻 (Jiang Da Hong, late Ming/early Qing): Wrote extensively but in cryptic language, establishing the foundations
章仲山 (Zhang Zhong Shan): Added essential commentaries, founded the 無常派 (Wu Chang Pai) school
談養吾 (Tan Yang Wu, 1920s): First scholar-practitioner to systematically use case studies for teaching
沈竹礽 (Shen Zhu Ren, 1930s): Discovered and documented the Flying Star method, published the definitive reference text that remains the standard today
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🎥 Flying Star Feng Shui Series (Period 9 Focus)
Curated resources for understanding the major energy shift of Period 9 (2024-2043). Essential viewing for updating natal charts.
Joey Yap: Period 9 Mastery
Comprehensive guide to the 20-year cycle shift. Focuses on the #9 Fire Star as the new Wealth Star.
Explore More Period 9 Content
The transition to Period 9 is the hottest topic in Feng Shui today.
To analyze a building, you must identify its Base Period (when the roof was installed and occupants moved in). This determines the "Natal Chart" of the house.
Cycle (Yuan)
Period (Yun)
Years (Gregorian)
Ruling Element
Upper Cycle (上元)
Period 1
1864 - 1883
Water (Kan)
Period 2
1884 - 1903
Earth (Kun)
Period 3
1904 - 1923
Wood (Zhen)
Middle Cycle (中元)
Period 4
1924 - 1943
Wood (Xun)
Period 5
1944 - 1963
Earth (Central)
Period 6
1964 - 1983
Metal (Qian)
Lower Cycle (下元)
Period 7
1984 - 2003
Metal (Dui)
Period 8
2004 - 2023
Earth (Gen)
Period 9
2024 - 2043
Fire (Li)
📍 We Are Currently in Period 9 (2024-2043)
Star 9 (九紫右弼 - Fire) is the ruling Wang (旺) star. This means Fire element energy is at peak power. Buildings completed and occupied between Feb 2024 - Jan 2044 have Period 9 as their natal chart base.
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📊 Period Base Charts (運盤) — All Nine Periods
Each period has a unique base chart determined by which star enters the center palace. The stars then "fly" following the Luo Shu trajectory: Center → NW → W → NE → S → N → SW → E → SE .
Mnemonic: 戴九履一、左三右七、二四為肩、六八為足、五居中央 (Wear nine, step on one; left three, right seven; two-four are shoulders; six-eight are feet; five resides in center)
Identify Building Period: Determine when your building was completed (roof on, occupants moved in)
Select Period Chart: Use the corresponding period chart as the base for your natal chart
Apply Sitting/Facing: Based on the building's facing direction (measured with Luo Pan), calculate Mountain Star and Water Star distributions
Analyze Combinations: For each of the 9 palaces, examine the Mountain-Water star combinations using the 81 Combinations Reference
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⚡ Star Energy Phases in Period 9 (九運星曜能量)
Based on the Shen Shi tradition, the classification of stars changes relative to the current period. Understanding these states is the first step in any audit.
Phase
Chinese
Status in Period 9
Stars
Nature
Wàng 旺
旺氣
Current Ruling Star
Star 9 (Fire)
Most auspicious; immediate wealth and fame.
Shēng 生
生氣
Future Prosperous Stars
Star 1 (Water), Star 2 (Earth)
Highly favorable; future potential and long-term gain.
Tuì 退
退氣
Retreating Star
Star 8 (Earth)
Losing power; represents stagnation or past success.
Sǐ 死
死氣
Dead Qi Stars
Stars 7, 6 (Metal)
Powerless and potentially harmful; "Old" energy.
Shā 殺
煞氣
Killing Qi Stars
Stars 5, 4, 3
Active harm; triggers disaster, legal issues, and illness.
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2. The Nine Stars (Attributes & Bodies)
While the "Timeliness" of a star changes with the Period (e.g., Star 7 is wealth in Period 7 but "Robbery" in Period 8/9), the intrinsic nature of the star remains constant.
A Xuan Kong chart is composed of three numbers in each of the 9 palaces:
Base Star (Middle): The Period number flew according to Luo Shu.
Mountain Star (Left): Governs Health/People. Determined by the Sitting Direction.
Water Star (Right): Governs Wealth. Determined by the Facing Direction.
Yin and Yang Flying
Depending on whether the 24 Mountain direction is Yang (Odd) or Yin (Even) relative to the Period, the stars fly Forward (Shun) or Reverse (Ni) . This is the secret key to the chart.
📚 Deep Dive: The 81 Combinations
Once you have your chart, you must interpret how the stars interact in each sector. We have compiled a comprehensive technical reference for all major combinations.