Source Library

The auspicious stars align with the Five Elements' mutual support, matching the ages and relationships of family members, and correspond to the numbers of the River Chart. The inauspicious stars, however, clash with the Five Elements and share no connection with those numbers. Thus, the fortune or misfortune of the Nine Stars reflects the subtle workings of numerical principles.

In classical Chinese residential design, the Nine Stars refer to nine symbolic energies. However, since the central palace has no trigram, the last two stars—Left Assistant and Right Assistant—are combined into one, leaving eight stars. These eight are determined by the interactions between different trigrams, creating a system of spatial relationships used to assess a home's energy.

When using a compass or luopan to measure direction, you identify eight cardinal points: east, west, south, north, northeast, southwest, southeast, and northwest. These correspond to the eight trigrams of the Later Heaven arrangement. Each trigram represents a direction, element, and number. A full circle is 360 degrees, so each trigram covers 45 degrees. On a luopan, each 45-degree segment is further divided into three equal parts, creating 24 "mountains" for more precise orientation.

In residential spatial design, location and orientation are two separate factors. A door may be placed in the northwest sector, but it might face north, west, or southwest. You must distinguish between the room's position and its direction. Only by pairing the eight trigrams with the nine-grid system can you determine good or bad fortune.

The eight trigrams are split into two groups: the yang trigrams—Heaven, Water, Mountain, and Thunder—and the yin trigrams—Wind, Fire, Earth, and Lake. This division guides the balance of energies in home layout, ensuring harmony between opposing forces.

In classical Chinese spatial design, the eight trigrams correspond to family roles and elements. Heaven (Qian) is the father, metal. Thunder (Zhen) is the eldest son, wood. Water (Kan) is the middle son, water. Mountain (Gen) is the youngest son, earth. Earth (Kun) is the mother, earth. Wind (Xun) is the eldest daughter, wood. Fire (Li) is the middle daughter, fire. Lake (Dui) is the youngest daughter, metal. This system links family hierarchy to natural forces for harmonious living spaces.

In Feng Shui, the eight trigrams (bagua) are used as the basis for spatial judgment. Their symbolic meanings must be applied flexibly, not rigidly, to assess a home's energy and layout.

The sequence of the Early Heaven Bagua: Qian, Dui, Li, Zhen, Xun, Kan, Gen, Kun (1 to 8). Each trigram has a visual form: Qian is three solid lines, Kun is six broken lines, Zhen looks like an upturned bowl, Gen like an overturned bowl, Li has a hollow center, Kan has a solid center, Dui is open at top, Xun is broken at bottom. This order reflects cosmic balance in spatial design.

The early heaven trigrams pair as follows: Heaven and Earth set positions, Wind and Thunder stir each other, Mountain and Lake connect energies, Water and Fire do not conflict. These pairings guide how spaces relate—opposites balance and energies flow.

In classical spatial design, numbers are linked to the Five Elements. One and six belong to Water; two and seven to Fire; three and eight to Wood; four and nine to Metal; five and ten to Earth. These pairings come from the Earlier Heaven trigram system and are used to determine the elemental qualities of a space.

The Later Heaven Bagua sequence is: Kan, Kun, Zhen, Xun, Center, Qian, Dui, Gen, Li, numbered 1 through 9. Memorize the number arrangement in the square below—this is the Nine-Star Distribution Map of the Later Heaven Bagua. The nine squares correspond to the eight trigrams and can guide interior layout decisions for a residence.

The Later Heaven Bagua arrangement follows the seasonal flow of the five elements—metal, wood, water, fire, and earth—through spring, summer, autumn, and winter. Each element’s energy rises, peaks, declines, and renews in an endless cycle, like a ring with no beginning or end.

This text describes a palm-mapping method for residential spatial design. The eight trigrams are arranged in two sequences: Li, Xun, Kun, Dui and Qian, Gen, Kan, Zhen. Specific trigrams pair together: Qian with Dui, Zhen with Li, Kun with Gen, Kan with Xun. Movement starts and stops at edges, center, top, or bottom. The eight outcomes are: Life, Five Ghosts, Extended Years, Six Calamities, Misfortune, Heavenly Doctor, Absolute Destruction, and Returning Soul.

In the Eight Mansions system, doors and pathways should open toward the three auspicious directions to attract good fortune. If misfortune occurs instead, it means the occupant’s life trigram is incompatible. Therefore, when evaluating a residence, you must also consider the occupant’s personal direction.

A wooden house suits a Wood or Water element person—this is called "transformation." For a Metal element person, it is called "control." The Broken Star facing the southeast harms the wife, but if a Water element person lives in a Fire element room, there is no harm.

The Dou Ling Jing states: When determining spatial orientation, only consider the head of household's birth year—not siblings, children, or women. After the head dies, use the eldest son's birth year. Other male relatives should be placed in rooms according to their own birth directions. If a widow runs the household, use her birth year instead.

If the husband and wife have different life trigrams—for example, the wife belongs to the East group and the husband to the West group—the arrangement depends on the house orientation. In a north-facing house, the husband takes the west room, the wife the center (treated as Kan). In a south-facing house, the husband takes the west, the wife the center or east (Xun or Li). In an east-facing house, the husband takes the north, the wife the center or south (Zhen or Xun). In a west-facing house, the husband takes the center, the wife the south or north (Kan or Li). The bed should generally face southeast. When spouses have different life trigrams, the husband’s orientation takes priority.

The Nine Star system controls negative energies: Vital Energy overcomes Five Ghosts, Heavenly Doctor subdues Doom, and Longevity suppresses Six Killings. This arrangement ensures harmful forces are kept in check, creating a balanced and harmonious living space.

The text describes a residential layout where three rooms face daily sighs, while four or seven rooms align with a dragon vein and true acupuncture point. Two streams converge, bringing thirty years of prosperity, then decline. To sustain fortune, change the outer door direction permanently. Otherwise, a widow with a fire ailment will cause the third room to fail first.

In classical Chinese spatial design, the eight trigrams are split into two groups. The western group—Heaven, Lake, Mountain, and Earth—always support each other because Earth nourishes Metal, and Metal and Earth strengthen their own kind. The eastern group—Water, Thunder, Wind, and Fire—also form a supportive chain: Water nourishes Wood, and Wood feeds Fire. These two groups should not be mixed in a home’s layout.