TL;DR: Long Mach in Loan Đầu Feng Shui symbolizes mountain ranges and terrain features that run across the land, regarded as the earth's meridians. Ngũ Quyết is a classic text that systematizes the search and evaluation of Long Mach based on actual terrain, not mystical factors.
What is Long and Long Mach in Loan Đầu Feng Shui?
Loan Đầu Feng Shui (also known as the Form School) is one of the two major schools of ancient Chinese Feng Shui, alongside Lý Khí. In it, Long is a foundational concept referring to ranges of mountains, hills, and undulating terrain stretching across the ground, likened to the image of a moving dragon. Long Mach (dragon vein) is the "bloodline" of the earth, the path through which vital energy (khi) moves underground, manifested through the continuity of mountain ranges and waterways.
The Ngũ Quyết is the short name for the book "Địa lý Ngũ Quyết" (or "Ngũ Quyết địa lý"), a classic work of Loan Đầu Feng Shui, attributed to scholars of the Ming-Qing period, synthesizing thousands of years of practical experience. The book consists of five volumes, each discussing an important aspect: Long Pháp (methods of observing dragon veins), Huyệt Pháp (methods of determining acupoints), Sa Pháp (methods of assessing surrounding mountain formations), Thủy Pháp (methods of assessing water flows), and Hướng Pháp (methods of orientation). Long Mach is placed first, affirming its pivotal role: with a good dragon vein, a good acupoint can be found, along with suitable surrounding mountains, water, and orientation.
Table classifying Long in the Five Determinations by origin, shape, direction, and position.
| Type of Long | Characteristics | Meaning |
|---|---|---|
| Tổ Sơn | The highest, most distant mountain, with branches spreading out like tree branches | The ancestor of the dragon vein |
| Thiếu Tổ Sơn | An important mountain immediately before the dragon vein enters the huyet, with a clear shape and strong momentum | |
| Phụ Mẫu Sơn | The mountain that directly gives birth to the huyet, located immediately behind the huyet field | |
| Sinh Long | A soft, graceful mountain form with many bends | Qi flows well |
| Tử Long | A rigid, straight mountain form with no bends | Qi is stagnant, not good |
| Khô Long | A bare, eroded mountain lacking trees, with dry soil and rocks | Qi has escaped |
| Ẩm Long | A mountain with many streams, moist soil, and lush plants | Qi is still abundant |
| Chính Long | The dragon vein runs straight into the huyet | The most favorable position |
| Bàng Long | The dragon vein runs from the side, creating an encircling position | Good but inferior |
| Nghịch Long | The dragon vein runs in the opposite direction of the main water flow | Usually not good |
| Thuận Long | The dragon vein runs in the same direction as the water flow | Easy to retain qi |
What are the origins and philosophy of the Long concept?
From natural observation to cultural symbol
Ancient people lived closely with nature. They observed mountain ranges stretching far into the distance, sometimes hidden in mist, with segments bending and winding, resembling the legendary dragon: a long body, scales, legs, and a raised head. Hence, the word "Long" came to denote mountain ranges. Beyond shape, they believed a flow of energy ran inside the mountains, akin to blood in the human body. Where the earth had a dragon vein, the vital energy was abundant, vegetation flourished, and people were healthy and prosperous.
Integration of Taoism and Eastern philosophy
The concept of Long Mach is deeply influenced by Yin-Yang philosophy, the Five Elements, and the Taoist theory of Khi (vital energy). Khi is an invisible energy that constantly moves, creating all things. In geography, khi is divided into two types: Am khi (yin energy, still, sinking) and Duong khi (yang energy, moving, rising). Long Mach is where khi converges and flows, and mountainous terrain is the visible form of khi. Loan Đầu Feng Shui emphasizes reading the "form" to infer the "energy," thereby locating the best place where khi accumulates.
How is Long classified in Ngũ Quyết?
The Ngũ Quyết does not merely describe dragon veins in general but classifies them meticulously to aid learners in identification and evaluation:
By origin and mountain form
- Tổ Sơn (or Thái Tổ Sơn): The highest, most distant peak, considered the ancestor of the dragon vein. From here, mountain branches radiate like tree limbs.
- Thiếu Tổ Sơn: An important peak just before the dragon vein reaches the acupoint, usually with clear shape and strong momentum.
- Phụ Mẫu Sơn: The peak that directly gives birth to the acupoint, located immediately behind the acupoint site.
By movement and shape
- Sinh Long: Soft, sinuous mountain forms, like a swimming dragon, with many curves, indicating good khi flow.
- Tử Long: Stiff, straight mountain forms without curves, khi stagnates, unfavorable.
- Khô Long: Barren mountains lacking vegetation, dry soil and rocks, khi has dissipated.
- Ẩm Long: Mountains with many streams, moist soil, lush vegetation, khi remains abundant.
By direction and position
- Chính Long: The dragon vein runs straight into the acupoint, creating the most advantageous position.
- Bàng Long: The dragon vein runs from the side, creating an encircling position, also good but less optimal.
- Nghịch Long: The dragon vein runs opposite to the main water flow, generally unfavorable.
- Thuận Long: The dragon vein runs in the same direction as the water flow, making it easier to retain khi.
How does Long Mach work with vital energy and terrain?
What is Khi and how does it move?
According to Feng Shui, khi in the earth is not static but moves along terrain features. High mountains have yang khi that rises; valleys and waterways have yin khi that sinks. Long Mach is the path khi travels, like water flowing in canals. When encountering open, flat terrain or surrounded by water, khi stops and accumulates into an acupoint. If the dragon vein is broken or blocked by roads or mines, khi dissipates and loses its effect.
What role does water play in protecting Khi?
In Feng Shui, water is considered "the carrier of khi," where khi is stored. A good dragon vein needs water flowing around or in front, creating a wide "Minh Duong" (bright hall) that prevents khi from scattering. Ngũ Quyết teaches that when searching for dragon veins, one must observe both mountains and water. Mountains are the root, water is the branches; mountains determine the direction of the dragon, water determines where it stops. If a mountain range ends where a river curves and embraces it, that is a sign of a good acupoint.
How do you identify a dragon vein in Ngũ Quyết?
Observing the overall form
The first step is to stand from afar and view the entire mountain range. Ngũ Quyết advises learners to "view the momentum from afar, and the form up close." From a distance, one can see if the dragon vein is continuous and majestic. A good dragon vein typically has these features:
- Runs long without breaks, not interrupted by deep valleys or large rivers crossing it.
- Has many branches radiating from both sides like embracing wings, creating a protective position.
- Elevation gradually decreases from the Tổ Sơn to the acupoint, forming a gentle slope, not too steep.
- Soil and rock colors change along its length, indicating the transition of khi.
Examining the dragon's segments in detail
After confirming the overall form, the practitioner walks along the dragon vein, observing each segment:
- Khoi To: The starting point of the dragon, usually a high peak. If the peak is rounded and vegetated, khi is good; if sharp and rocky, khi is poor.
- Chuyen Long: Where the dragon vein changes direction, forming a curve. The more smooth curves, the better, because khi is retained longer.
- Ket Long: The final point where the dragon stops, usually a flat area with a wide Minh Duong and surrounding water.
Identifying through geology and vegetation
Ngũ Quyết relies not only on shape but also on practical signs:
- Soil in areas with dragon veins is often fresh, not dry, easy to dig, with moderate moisture.
- Surrounding vegetation is lush and healthy, free from pests and diseases.
- When digging, encountering a layer of sandy soil with yellow or red color may indicate accumulated khi.
How are dragon veins applied in daily life?
How do you choose land for houses and graves?
The most practical purpose of finding a dragon vein is to choose a location for a house or grave that harmonizes with nature, bringing health and luck to the occupants. A house situated on a good dragon vein, with mountains behind for support and water in front for openness, ensures fresh air, comfort, and mental clarity.
Urban planning and landscape design
Today, many architects and urban planners study Loan Đầu Feng Shui to design urban areas, parks, and resorts that utilize natural terrain, create harmonious landscapes, and enhance quality of life. Avoiding construction over underground water veins and preserving continuous green belts also echo the principles of dragon veins.
How does Loan Đầu compare with other feng shui schools?
How are Loan Đầu and Lý Khí different?
While Loan Đầu focuses on physical forms and actual terrain, Lý Khí (also called the Compass School) relies on mathematical formulas, directions, and time calculations. Lý Khí uses compasses, stars, Nine Stars, and Flying Stars to determine auspicious orientations, with less emphasis on terrain. Many modern Feng Shui practitioners argue that both schools should be combined: Loan Đầu for site selection, Lý Khí for orientation.
Common ground with other cultures
The idea of "energy flowing through the earth" is not unique to China. In India, there is Vastu Shastra; in the West, legends of Ley lines connecting ancient sites. Despite different interpretations, all reflect humanity's ancient intuition about the link between terrain and health and spirit.
What should you keep in mind about modern feng shui views?
Why should you not absoluteize feng shui?
Loan Đầu Feng Shui, like the entire Feng Shui system, is a rich body of folk knowledge, but not empirical science in the modern sense. Applying dragon veins to predict wealth or life and death requires caution. Feng Shui's effects should be viewed as improving living environments, enhancing spatial quality, and creating a sense of peace and well-being.
Respect cultural and environmental values
Today, studying dragon veins also has significance in preserving natural landscapes, mountain ranges, and rivers. Many modern projects are criticized for disrupting the "dragon vein" of a region, causing landslides and ecological imbalance. Understanding dragon veins reminds us to live in harmony with nature.
