Small Kong Wang (Tiểu Không Vong): What Happens When a House Facing Falls Between Two 15° Mountains Inside the Same Trigram?
While Great Kong Wang splits a building between two different Bagua Trigrams every 45°, Small Kong Wang (Tiểu Không Vong · 小空亡) occurs twice inside every Trigram—along the 16 internal boundary lines separating the three 15-degree Mountains (Earth, Heaven, and Human Yuan Dragons). Master Ung Khiem explains why 8 of these seams trigger a severe Yin–Yang Polarity Collision (Âm Dương Sai Thác) while the other 8 remain mild, and how to re-calibrate your entrance without structural demolition.
Core Dossier: Small Kong Wang (Tiểu Không Vong 小空亡)
Executive Summary & Field Priorities (GEO Quick-Answer)
- What Small Kong Wang (Tiểu Không Vong) Is: Inside each `45°` Bagua Trigram live three `15°` Mountains: the Earth Yuan Dragon (Địa Nguyên Long), Heaven Yuan Dragon (Thiên Nguyên Long), and Human Yuan Dragon (Nhân Nguyên Long). The 16 internal dividing lines (`2 per Trigram × 8 Trigrams`) are the Small Kong Wang seams.
- The Critical Discovery—Not All 16 Small Voids Are Equal: On the Luo Pan’s Heaven Plate/Earth Plate Yin-Yang ring, the Earth Dragon (first 15° Mountain) always has the opposite Yin-Yang polarity from the Heaven and Human Dragons (second and third 15° Mountains)! Therefore, the 8 seams at `352.5°`, `37.5°`, `82.5°`, `127.5°`, `172.5°`, `217.5°`, `262.5°`, and `307.5°` cause a violent Yin–Yang Clash (Âm Dương Sai Thác), whereas the 8 seams at `7.5°`, `52.5°`, `97.5°`, `142.5°`, `187.5°`, `232.5°`, `277.5°`, and `322.5°` share the same Yin-Yang polarity!
- Distinguishing Exact Seam (±1.5°) from Legal Jian Xiang (1.5°–4.5°): If a house sits dead on `7.5° ± 0.75°`, it is still in Tortoise-Shell Small Void. However, if it sits `2.5°` away from `7.5°` (at `5.0°` or `10.0°`), it is a valid, classical Supplementary Direction (Kiêm Hướng) governed by Replacement Stars (Thế Quái).
- Eight Mansions (Bát Trạch) Continuity: Because Small Kong Wang stays inside a single 45° Bagua Trigram, your house’s East or West Life Group never flips across a Small Kong Wang line.
- Architectural Cures: A minor `3° to 4.5°` door-frame skew, threshold sill rotation, or foyer screen immediately resolves Small Kong Wang.
1. What Is Small Kong Wang (Tiểu Không Vong)? The Three Yuan Dragons Inside Every Trigram
Precision separates a master from a novice. When a homeowner learns that their house faces North (`Kan` Trigram ☵, spanning `337.5° to 22.5°`), they often assume that any degree within that 45-degree slice behaves identically. In classical Xuan Kong Flying Star Feng Shui (Huyền Không Phi Tinh) and San He compass science, nothing could be further from the truth.
Every `45.0°` Bagua Trigram Palace is trisected into three distinct `15.0°` sectors called the Three Yuan Dragons (Tam Nguyên Long · 三元龍):
- The Earth Yuan Dragon (Địa Nguyên Long · 地元龍): The first (counter-clockwise / left) `15°` Mountain of the Trigram (e.g., Ren `337.5°–352.5°` in North).
- The Heaven Yuan Dragon (Thiên Nguyên Long · 天元龍): The central `15°` Mountain of the Trigram (e.g., Zi `352.5°–7.5°` in North).
- The Human Yuan Dragon (Nhân Nguyên Long · 人元龍): The third (clockwise / right) `15°` Mountain of the Trigram (e.g., Gui `7.5°–22.5°` in North).
Inside each of the 8 Trigrams, there are two internal dividing seams separating these three 15° Mountains: Seam #1 between the Earth and Heaven Dragons, and Seam #2 between the Heaven and Human Dragons. Across all 8 Trigrams (`2 × 8`), this produces the 16 Small Kong Wang Lines (Tiểu Không Vong · 小空亡) (Kong Wang Overview).
天人同氣尚可兼，地天異性切莫犯；針落小空陰陽駁，吉凶參半費周章。 Sino-Vietnamese: Thiên Nhân đồng khí thượng khả kiêm, Địa Thiên dị tính thiết mạc phạm; châm lạc Tiểu Không âm dương bác, cát hung tham bán phí chu chương.“When Heaven and Human Dragons share the same Qi polarity, a slight skew may be tolerated; when Earth and Heaven Dragons differ in Yin-Yang nature, never violate their border; when the needle falls into Small Kong Wang, Yin and Yang mix in confusion.”
Classical Xuan Kong Maxim derived from Tian Yu Jing (天玉經) & Shen Shi Xuan Kong Xue (沈氏玄空學)
2. The Secret of Yin-Yang Polarity: Why 8 Small Voids Are Severe and 8 Are Mild
Here lies one of the most important secrets of the classical Luo Pan compass—a principle almost completely absent from popular Feng Shui books. Look at the Yin–Yang polarity (colored red for Yang and black/gold for Yin on a traditional Luo Pan) of the three Mountains inside any 45° Trigram:
- In the Four Cardinal Trigrams (Kan North, Zhen East, Li South, Dui West): The first Mountain (Earth Dragon: Ren, Jia, Bing, Geng) is YANG (+), whereas the second and third Mountains (Heaven & Human Dragons: Zi/Gui, Mao/Yi, Wu/Ding, You/Xin) are both YIN (-)!
- In the Four Corner Trigrams (Gen NE, Xun SE, Kun SW, Qian NW): The first Mountain (Earth Dragon: Chou, Chen, Wei, Xu) is YIN (-), whereas the second and third Mountains (Heaven & Human Dragons: Gen/Yin, Xun/Si, Kun/Shen, Qian/Hai) are both YANG (+)!
Pause and absorb that mathematical symmetry! Inside every single one of the Eight Trigrams, the pattern is `[+ , - , -]` or `[- , + , +]`. Consequently:
- Seam #1 (Earth Dragon ↔ Heaven Dragon) ALWAYS clashes in Yin–Yang polarity! Crossing `352.5°`, `37.5°`, `82.5°`, `127.5°`, `172.5°`, `217.5°`, `262.5°`, or `307.5°` forces a Yang forward-flying star chart (Thuận Phi) to collide head-on with a Yin reverse-flying star chart (Nghịch Phi). Classical texts call this Yin-Yang Difference & Error (Âm Dương Sai Thác · 陰陽差錯).
- Seam #2 (Heaven Dragon ↔ Human Dragon) ALWAYS shares the exact same Yin–Yang polarity! Crossing `7.5°`, `52.5°`, `97.5°`, `142.5°`, `187.5°`, `232.5°`, `277.5°`, or `322.5°` keeps both adjacent Mountains in the same Yin or Yang family (Đồng Âm Đồng Dương / Thuần Khiết). While sitting dead on the `±0.75°` seam still weakens Qi intake, a slight `2°–3°` skew across Seam #2 is infinitely gentler than Seam #1!
3. Complete Master Table of All 16 Small Kong Wang Seams (0°–360°)
Use this diagnostic reference table to classify any of the 16 Small Kong Wang azimuths by Trigram, bordering Mountains, Yin–Yang polarity interaction, and clinical severity:
| Azimuth | Parent Trigram | Bordering Mountains (15° Each) | Polarity Transition | Classical Classification & Severity |
|---|---|---|---|---|
| 352.5° | Kan ☵ (North) | Ren (Earth) ↔ Zi (Heaven) | Yang (+) ↔ Yin (-) | SEVERE: Âm Dương Sai Thác (Polarity Clash) |
| 7.5° | Kan ☵ (North) | Zi (Heaven) ↔ Gui (Human) | Yin (-) ↔ Yin (-) | MILD: Đồng Âm Thuần Khiết (Same Polarity) |
| 37.5° | Gen ☶ (NE) | Chou (Earth) ↔ Gen (Heaven) | Yin (-) ↔ Yang (+) | SEVERE: Âm Dương Sai Thác (Polarity Clash) |
| 52.5° | Gen ☶ (NE) | Gen (Heaven) ↔ Yin (Human) | Yang (+) ↔ Yang (+) | MILD: Đồng Dương Thuần Khiết (Same Polarity) |
| 82.5° | Zhen ☳ (East) | Jia (Earth) ↔ Mao (Heaven) | Yang (+) ↔ Yin (-) | SEVERE: Âm Dương Sai Thác (Polarity Clash) |
| 97.5° | Zhen ☳ (East) | Mao (Heaven) ↔ Yi (Human) | Yin (-) ↔ Yin (-) | MILD: Đồng Âm Thuần Khiết (Same Polarity) |
| 127.5° | Xun ☴ (SE) | Chen (Earth) ↔ Xun (Heaven) | Yin (-) ↔ Yang (+) | SEVERE: Âm Dương Sai Thác (Polarity Clash) |
| 142.5° | Xun ☴ (SE) | Xun (Heaven) ↔ Si (Human) | Yang (+) ↔ Yang (+) | MILD: Đồng Dương Thuần Khiết (Same Polarity) |
| 172.5° | Li ☲ (South) | Bing (Earth) ↔ Wu (Heaven) | Yang (+) ↔ Yin (-) | SEVERE: Âm Dương Sai Thác (Polarity Clash) |
| 187.5° | Li ☲ (South) | Wu (Heaven) ↔ Ding (Human) | Yin (-) ↔ Yin (-) | MILD: Đồng Âm Thuần Khiết (Same Polarity) |
| 217.5° | Kun ☷ (SW) | Wei (Earth) ↔ Kun (Heaven) | Yin (-) ↔ Yang (+) | SEVERE: Âm Dương Sai Thác (Polarity Clash) |
| 232.5° | Kun ☷ (SW) | Kun (Heaven) ↔ Shen (Human) | Yang (+) ↔ Yang (+) | MILD: Đồng Dương Thuần Khiết (Same Polarity) |
| 262.5° | Dui ☱ (West) | Geng (Earth) ↔ You (Heaven) | Yang (+) ↔ Yin (-) | SEVERE: Âm Dương Sai Thác (Polarity Clash) |
| 277.5° | Dui ☱ (West) | You (Heaven) ↔ Xin (Human) | Yin (-) ↔ Yin (-) | MILD: Đồng Âm Thuần Khiết (Same Polarity) |
| 307.5° | Qian ☰ (NW) | Xu (Earth) ↔ Qian (Heaven) | Yin (-) ↔ Yang (+) | SEVERE: Âm Dương Sai Thác (Polarity Clash) |
| 322.5° | Qian ☰ (NW) | Qian (Heaven) ↔ Hai (Human) | Yang (+) ↔ Yang (+) | MILD: Đồng Dương Thuần Khiết (Same Polarity) |
4. Group A (Severe): The 8 Yin-Yang Clash Seams (Âm Dương Sai Thác)
Notice that the 8 severe Small Kong Wang lines form four opposing diameter axes across the compass:
- Axis 1 (`352.5°` Ren/Zi ↔ `172.5°` Bing/Wu): The North-Northwest / South-Southeast seam inside Kan and Li.
- Axis 2 (`37.5°` Chou/Gen ↔ `217.5°` Wei/Kun): The Northeast / Southwest internal polarity seam inside Gen and Kun.
- Axis 3 (`82.5°` Jia/Mao ↔ `262.5°` Geng/You): The East / West internal polarity seam inside Zhen and Dui.
- Axis 4 (`127.5°` Chen/Xun ↔ `307.5°` Xu/Qian): The Southeast / Northwest internal polarity seam inside Xun and Qian.
When a building’s facing axis sits within `±1.5°` of any of these 8 azimuths, the occupant experiences Yin–Yang Cross-Fire (Âm Dương Bác Tạp): internal politics inside companies, husband-and-wife communication breakdowns, and contradictory medical diagnoses. These 8 seams require mandatory door-frame rotation (`3°–5°`) into the center of either the Earth Dragon or the Heaven Dragon.
5. Group B (Mild): The 8 Same-Polarity Seams (Đồng Âm Đồng Dương)
What about the other 8 seams (`7.5°`, `52.5°`, `97.5°`, `142.5°`, `187.5°`, `232.5°`, `277.5°`, `322.5°`) connecting the Heaven Yuan Dragon and the Human Yuan Dragon?
Because both adjacent Mountains share the exact same Yin or Yang polarity, their baseline Flying Stars fly in the same forward or reverse direction during any Period where they share replacement star identity! Only when the building’s axis lands dead-center on the hairline crack (`±0.75°` Quy Giáp Không Vong) does energy stagnate. If the building sits even `1.8° to 4.0°` away from a Group B seam, classical San He and Xuan Kong masters actually classify it as a Harmonious Supplementary Direction (Kiêm Hướng Thuần Khiết) that does not require demolishing the doorway.
6. Exact Void Seam (±0.75°–1.5°) vs. Replacement Star Skew (Kiêm Hướng Thế Quái)
Many homeowners confuse Small Kong Wang with Jian Xiang (Kiêm Hướng · 兼向). Let us establish the exact angular boundaries using the `7.5°` seam between Zi (`352.5°–7.5°`) and Gui (`7.5°–22.5°`) as a concrete mathematical example:
- 0.0° to 4.5° (Inside Zi): Within `4.5°` of the `0.0°` midpoint of Zi (`355.5° to 4.5°`). This is Pure Direction (Chính Hướng Hạ Quái).
- 4.5° to 6.0° (Zi Skewing Toward Gui): Located `1.5° to 3.0°` away from the `7.5°` seam. This is NOT Small Kong Wang! It is Tọa Ngọ Hướng Tý Kiêm Đinh Quý, plotted using the classical Replacement Star Chart (Thế Quái).
- 6.0° to 9.0° (specifically 6.75° to 8.25°): Straddling `7.5° ± 0.75°` (up to `±1.5°`). This is True Small Kong Wang, where the compass needle rides the crack between Zi and Gui.
7. How Replacement Stars (Thế Tinh) Work When Your Facing Skews by 2°–4°
When a building’s axis sits `1.5° to 4.5°` away from a Mountain boundary (in the Kiêm Hướng zone), classical Xuan Kong substitutes the standard Lo Shu number with its Replacement Star (Thế Tinh · 替星) according to the sacred verse in the Qing Nang Ao Yu (`Zi-Gui-Jia-Shen` greedy wolf #1; `Kun-Ren-Yi-Mao-Wei` #2; `Xu-Qian-Hai-Chen-Xun-Si` #6; `Geng-Yin-Wu-Ding-Bing-Xin` #7; `Chou-Gen-You` #9). Notably, inside the 24 Mountains, 13 Mountains keep their original star number even when skewed (Thế Nhi Bất Thế), while 11 Mountains change to a new replacement star!
8. Observable Household & Financial Symptoms of Small Kong Wang
How does a true Small Kong Wang residence (`±1.5°` on the seam) differ in real-world symptoms from a Great Kong Wang property?
- Unlike Great Kong Wang, the House Doesn't Collapse Overnight: Because the building still resides inside a single sovereign Bagua Trigram, career and family foundations remain intact.
- Chronic “90% Completion” Syndrome: Projects, property sales, and promotions repeatedly reach the final signature stage and then stall or require exhausting rework.
- Dual Income / Dual Identity Friction: On Group A Yin-Yang clash seams (`352.5°`, `37.5°`, `82.5°`, `127.5°`, `172.5°`, `217.5°`, `262.5°`, `307.5°`), occupants frequently experience tension between public appearance (Yang) and private exhaustion (Yin), or cash flow leaking through hidden operational inefficiencies.
9. Four Architectural Remedies to Shift a Small Kong Wang Axis by 3°–5°
Because Small Kong Wang requires shifting the intake vector by only 3.0° to 4.5° to enter the pure central zone of the adjacent 15° Mountain, architectural remediation is remarkably clean and non-invasive:
- Micro-Angling the Door Jamb & Sill by 3.5°–4.5° (Vi Chỉnh Cải Môn): On a standard `100 cm` wide front door, a `4.0°` rotation requires tapering the door jamb by only 7.0 cm (2.75 inches)! A skilled carpenter or stone mason can recess one side of the door frame by `7 cm` inside existing trim in a single afternoon.
- Asymmetric Double-Leaf Door Locking (Khóa Cánh Phụ): If your home has a 2-leaf or 4-leaf front door centered on a Small Kong Wang seam, bolt the passive leaf shut and install an angled threshold weather-seal and side screen on the active leaf so that incoming pedestrian traffic and airflow enter at a `5°–10°` oblique vector.
- Interior Foyer Screen & Command Furniture Alignment: In high-rise apartments, place an angled console cabinet or `140 cm` timber screen inside the foyer, and angle the Master Bed and Executive Desk by `4°` via a custom headboard backing strip so occupants sleep on a pure Mountain axis.
- Threshold Five-Element Grounding: Embed a natural jade/quartz stone strip or 6-coin brass bar aligned precisely to the corrected `Pure Mountain` degree beneath the doorway threshold tile.
10. Period 9 (2024–2043) Rules for Small Kong Wang & Jian Xiang Charts
Period 9 (Lower Yuan — Li Fire ☲, 2024–2043) Small Void Calibration
In Period 9 (2024–2043), every time Star #9 enters the center of a Flying Star chart (such as theSitting or Facing Star #9), remember a fundamental mathematical reality of the Lo Shu grid: Star #9 (Li) sits on the edge of the Lo Shu and has NO central opposite partner, so its flight direction depends strictly on the Yin–Yang polarity of the Mountain Beneath Star #9!
- Why Group A Small Voids Are Especially Volatile in Period 9: At `172.5°` (the border between Bing Yang Fire and Wu Yin Fire in the South) and `352.5°` (the border between Ren Yang Water and Zi Yin Water in the North), Star #9 sits directly at the Sitting or Facing palace! Crossing that single degree flips the flight of the entire Period 9 chart between forward and reverse.
- Favoring Zi/Wu and Gui/Ding in Period 9: When correcting a `352.5°` or `172.5°` Small Kong Wang axis in Period 9, evaluate the exterior topography carefully: tilting into Zi/Wu (`0° / 180°`) or Ren/Bing (`345° / 165°`) locks in a clean, unmixed Period 9 chart.
11. Three Clinical Case Studies from Master Ung Khiem’s Audit Files
Case Study 1: Curing a 172.5° (Bing/Wu) Group A Small Void Townhouse in District 3 (HCMC)
- Spatial Audit: A media production agency leased a modern townhouse facing `172.4°` South—dead on the Group A Yin-Yang clash seam between Bing (`157.5°–172.5°`, Yang) and Wu (`172.5°–187.5°`, Yin). Over 14 months, the agency suffered three major client contract cancellations at the final sign-off stage.
- Intervention & Outcome: We recessed the right side of the aluminum-and-timber main entrance frame by `7.5 cm` inside a new teak architrave reveal, rotating the door `4.2°` clockwise to face 176.6° (Pure Wu Horse Mountain in South Li), and aligned the CEO’s Command Desk to `176.6°`. Contract retention stabilized immediately, with Q3–Q4 billings rising 52%.
Case Study 2: Reassuring a Homeowner at 9.8° (Gui Skewing Zi — Legal Jian Xiang, Not Void!)
- Spatial Audit: A couple in Hanoi was told by a local practitioner that their villa facing `9.8°` North was in “Small Kong Wang” and needed an expensive `60 million VND` gate demolition.
- Master Ung Khiem’s Diagnosis: The Small Kong Wang seam between Zi and Gui sits at `7.5°`. At `9.8°`, the house is `2.3°` away from the seam—and in addition, Zi and Gui are Group B Same-Polarity Yin Mountains (`Đồng Âm Thuần Khiết`) where Star #1 does not even change under Replacement Star rules (Thế Nhi Bất Thế)! We saved the client from unnecessary demolition and focused on clearing their Foyer Ming Tang.
Case Study 3: Resolving a 307.5° (Xu/Qian) Executive Suite via Asymmetric Double-Door Channel
- Spatial Audit: A luxury villa facing `307.6°` Northwest straddled the Group A seam between Xu (Yin Earth) and Qian (Yang Metal). By locking the left leaf of the grand double entrance door, placing a 90 cm bronze sculpture in front of the locked leaf, and angling the interior foyer console `+4.5°` toward `312.0°` (Pure Qian Heaven Dragon), we shifted the functional Mouth of Qi into pure Northwest Metal without cutting the facade stonework.
Master Ung Khiem’s 15-Point Small Kong Wang Diagnostic Checklist
- Measure Azimuth Clear of Rebar: Use the 3-point stand-off method (`1.5m`, `3.0m`, `4.5m`) and Luo Pan Pro to confirm your reading to within `±0.5°`.
- Identify the Parent 45° Trigram First: Confirm that your house is not on an 8×45° Great Kong Wang border.
- Check Against the 16 Small Void Degrees: Inspect `7.5°`, `37.5°`, `52.5°`, `82.5°`, `97.5°`, `127.5°`, `142.5°`, `172.5°`, `187.5°`, `217.5°`, `232.5°`, `262.5°`, `277.5°`, `307.5°`, `322.5°`, and `352.5°`.
- Determine Exact Offset From the Seam: Is your axis within `±0.75°` (Tortoise-Shell Void), `±1.5°` (Small Void), or `1.5°–4.5°` (Kiêm Hướng Replacement Star zone)?
- Classify Group A vs. Group B Polarity: Check whether your seam is an Earth/Heaven clash seam (Group A) or a Heaven/Human same-polarity seam (Group B).
- Never Demolish a Safe Group B Jian Xiang Door: If your facing sits `2°–4°` off a Group B seam (`7.5°`, `52.5°`, etc.), plot the Replacement Star chart—no door tilting is needed!
- Prioritize Curing Group A Polarity Seams: Always correct a door falling within `±1.5°` of `352.5°`, `37.5°`, `82.5°`, `127.5°`, `172.5°`, `217.5°`, `262.5°`, or `307.5°`.
- Compare Both Neighboring 15° Mountains in Period 9: Plot both Downhill (Hạ Quái) charts before deciding whether to tilt clockwise or counter-clockwise.
- Execute a 3.5°–4.5° Jamb Micro-Tilt (Vi Chỉnh Cải Môn): Recess one door jamb by `6–8 cm` inside custom architrave trim to shift into the `9°` pure zone.
- Use Asymmetric Double-Door Channeling: On wide double doors, lock the passive leaf on the seam side and channel entry through the pure side.
- Install an Angled Foyer Screen in Apartments: Redirect incoming corridor air by `4°–6°` or `90°` using an interior Huyền Quan partition.
- Align the Master Bed & Desk to the Pure Mountain: Use a thin tapered headboard batten so sleepers and executives align with the corrected Mountain (Command Position).
- Anchor the Threshold with Natural Stone or Brass: Set the new granite sill flush with the corrected door angle.
- Maintain Foyer Illumination & Porosity: Keep the Nei Ming Tang bright (`3000K`) and free of shoe clutter (Decluttering for Qi).
- Verify Date Selection (Trạch Nhật) Before Carpentry: Check annual and monthly Flying Stars before modifying the door frame.
Audit Your Home Scientifically with Master Ung Khiem’s Precision Tools
Ready to apply classical Yang Zhai diagnostics to your own floor plan? Use our free interactive tools to measure your 24-Mountain facing, overlay the Eight Mansions and Period 9 Flying Stars, and test your room layout in 3D:
12. Frequently Asked Questions (FAQ) & Classical Bibliography
1. What are the exact degrees of the 16 Small Kong Wang (Tiểu Không Vong) lines?
The 16 Small Kong Wang seams sit at the internal `15°` Mountain borders inside the Eight Trigrams: 7.5°, 37.5°, 52.5°, 82.5°, 97.5°, 127.5°, 142.5°, 172.5°, 187.5°, 217.5°, 232.5°, 262.5°, 277.5°, 307.5°, 322.5°, and 352.5°.
2. Why are half of the Small Kong Wang lines much worse than the other half?
Inside every Trigram, the first Mountain (Earth Dragon) has the opposite Yin-Yang polarity from the second and third Mountains (Heaven & Human Dragons). Thus, the 8 Earth-Heaven seams (`352.5°`, `37.5°`, `82.5°`, `127.5°`, `172.5°`, `217.5°`, `262.5°`, `307.5°`) trigger a severe Yin-Yang polarity inversion (Âm Dương Sai Thác), whereas the 8 Heaven-Human seams (`7.5°`, `52.5°`, `97.5°`, `142.5°`, `187.5°`, `232.5°`, `277.5°`, `322.5°`) share the same polarity!
3. What is the difference between Small Kong Wang and Jian Xiang (Kiêm Hướng)?
Small Kong Wang applies only when the axis sits within ±0.75° to ±1.5° of the `15°` boundary line. If the axis sits `1.5° to 4.5°` away from the seam, it is Jian Xiang (Kiêm Hướng)—a completely valid classical orientation calculated using the Replacement Star Chart (Thế Quái).
4. Does Small Kong Wang change my house's Eight Mansions (East/West) group?
No. Because Small Kong Wang occurs between two `15°` Mountains inside the same `45°` Bagua Trigram, your House Trigram (Trạch Quái) and its East or West Life Group remain 100% unchanged.
5. How much do I need to tilt my front door to fix Small Kong Wang?
A micro-rotation of 3.5° to 4.5° shifts the Main Door cleanly out of the `±1.5°` seam and into the central `9°` pure zone. On a `100 cm` wide door frame, a `4.0°` tilt requires recessing one jamb by only 7.0 cm (`100 × tan 4° ≈ 7 cm`), which easily hides inside decorative door trim!
6. Can I fix Small Kong Wang on a double front door without cutting the wall?
Yes! Bolt the passive door leaf shut, place a heavy planter or console screen inside that half, and use only the active leaf. This shifts the radial line from the Floor Plan Centroid to the active doorway by `5°–8°` without cutting a single brick.
Classical Sources & Scientific Bibliography
- Shen Zhu Reng (Qing Dynasty), Shen Shi Xuan Kong Xue / Master Shen’s Study of Xuan Kong (沈氏玄空學).
- Yang Yun Song (Tang Dynasty), Qing Nang Ao Yu / Mysteries of the Green Satchel (青囊奧語) — source of the Replacement Star (Ti Gua) formula.
- Yang Yun Song (Tang Dynasty), Tian Yu Jing / Classic of the Celestial Jade (天玉經) — doctrine of Three Yuan Dragon purity.
- Jiang Da Hong (Ming/Qing Dynasty), Di Li Bian Zheng / Distinguishing Truth in Earth Principles (地理辨正).
- Zhang Zhong Shan (Qing Dynasty), Xuan Kong Mi Zhi / Secret Directives of Xuan Kong (玄空秘旨).