What Is a Kua Number? Your Personal Feng Shui Lucky Directions
本命卦是什麼？八字風水個人吉方完整計算指南
English
A Kua number (命卦, mìng guà) is a single digit from 1 to 9 — calculated from your birth year and sex — that places you in one of the eight trigrams of the I Ching and hands you four supportive compass directions and four draining ones. It is the personal key of the Eight Mansions school of Feng Shui (八宅風水, bāzhái fēngshuǐ), the oldest compass method in the tradition, and it is the first number most practitioners ask you for.
It is worth being precise about what a Kua number is not. It is not part of your BaZi chart. BaZi reads your entire birth moment — year, month, day and hour — and anchors everything on your Day Master (日主). The Kua number uses only your birth year and sex, and belongs to an entirely separate system. A person born in 1990 is a Horse in BaZi, and is a Kua 1 Kan (Water, East Group) man or a Kua 8 Gen (Earth, West Group) woman. The year pillar says Horse for both and tells you nothing about which way to face your bed.
1. How do I calculate my Kua number?
Reduce your birth year to a single digit, then apply the sex formula. The "year" here is the solar year starting at Li Chun (立春), around February 4 — not January 1, and not Lunar New Year.
Step 1 — Reduce the year to one digit (S). Add the digits of your birth year repeatedly until only one digit remains.
- 1984 → 1 + 9 + 8 + 4 = 22 → 2 + 2 = 4
- 1990 → 1 + 9 + 9 + 0 = 19 → 1 + 9 = 10 → 1 + 0 = 1
Step 2 — Apply your formula. This version needs no century adjustment:
| Sex | Formula | Normalization |
|---|---|---|
| Male | 11 − S | If the result is 10, write 1 |
| Female | 4 + S | If the result is above 9, subtract 9 |
Step 3 — Handle the Kua 5. Five sits at the centre of the Lo Shu grid and belongs to no trigram, so it is "lodged" in a neighbouring one. The mainstream Eight Mansions rule is men lodge in 2 (Kun, Earth) and women lodge in 8 (Gen, Earth) — both West Group.
Worked example — a woman born July 20, 1991. S = 1 + 9 + 9 + 1 = 20 → 2 + 0 = 2. Female: 4 + 2 = 6. Her Kua number is 6 — Qian (乾), Metal, West Group.
Worked example — a man born January 20, 1985. Li Chun 1985 fell on February 4, so his Feng Shui year is still 1984. S = 22 → 4. Male: 11 − 4 = 7. His Kua number is 7 — Dui (兌), Metal, West Group.
The version online calculators use. Most calculators work from the last two digits of your year and apply a century rule instead. The two systems are mathematically identical — they just look different:
| Born | Male | Female |
|---|---|---|
| 1901–1999 | 10 − S | 5 + S |
| 2000–2099 | 9 − S | 6 + S |
Here S is the reduced sum of the last two digits only (1984 → 8 + 4 = 12 → 3). The reason the formulas differ is arithmetic: 1900 contributes a 1 to the digit sum and 2000 contributes a 2, so the century table and the universal table compensate for exactly that difference.
2. What do the eight Kua numbers mean?
Each number maps to one trigram, one element, and one of two groups — East Group (東四命) or West Group (西四命).
| Kua | Trigram | Element | Group | Nature |
|---|---|---|---|---|
| 1 | Kan 坎 | Water | East | Deep, adaptive, introspective |
| 2 | Kun 坤 | Earth | West | Supportive, patient, carrying |
| 3 | Zhen 震 | Wood | East | Restless, initiating, brave |
| 4 | Xun 巽 | Wood | East | Gentle, permeable, mediating |
| 5 | — | Central Earth | — | Lodged: men → 2, women → 8 |
| 6 | Qian 乾 | Metal | West | Decisive, authoritative, driving |
| 7 | Dui 兌 | Metal | West | Articulate, sociable, joyful |
| 8 | Gen 艮 | Earth | West | Still, guarded, self-contained |
| 9 | Li 離 | Fire | East | Clear, radiant, cultured |
The grouping matters because it sets your four good directions as a block: East Group (1, 3, 4, 9) draws on North, South, East and Southeast; West Group (2, 6, 7, 8) draws on West, Northwest, Southwest and Northeast. The two sets are exact mirror images — the best direction of one group is the worst direction of the other.
3. What are my four lucky directions and four to avoid?
The 大遊年 (Great Yearly Journey) method assigns eight "travelling stars" to the eight directions relative to your own trigram. Your own direction is the Fu Wei (伏位); moving clockwise from it, the stars follow the fixed order used in the classical rhyme 乾六天五禍絕延生.
Your four auspicious directions (四吉):
| Kua | Fu Wei 伏位 | Sheng Qi 生氣 | Tian Yi 天醫 | Yan Nian 延年 |
|---|---|---|---|---|
| 1 Kan | North | Southeast | East | South |
| 2 Kun | Southwest | Northeast | West | Northwest |
| 3 Zhen | East | South | North | Southeast |
| 4 Xun | Southeast | North | South | East |
| 6 Qian | Northwest | West | Northeast | Southwest |
| 7 Dui | West | Northwest | Southwest | Northeast |
| 8 Gen | Northeast | Southwest | Northwest | West |
| 9 Li | South | East | Southeast | North |
Your four challenging directions (四凶):
| Kua | Liu Sha 六煞 | Wu Gui 五鬼 | Huo Hai 禍害 | Jue Ming 絕命 |
|---|---|---|---|---|
| 1 Kan | Northwest | Northeast | West | Southwest |
| 2 Kun | South | Southeast | East | North |
| 3 Zhen | Northeast | Northwest | Southwest | West |
| 4 Xun | West | Southwest | Northwest | Northeast |
| 6 Qian | North | East | Southeast | South |
| 7 Dui | Southeast | South | North | East |
| 8 Gen | East | North | South | Southeast |
| 9 Li | Southwest | West | Northeast | Northwest |
What the eight stars actually mean:
- Sheng Qi (生氣) — Tan Lang (貪狼), Wood. The strongest auspicious star: vitality, growth, success, new beginnings. Best direction for your main door, your desk, and your career decisions.
- Tian Yi (天醫) — Ju Men (巨門), Earth. Health, recovery, protection from illness, and the nobleman position. The classic choice for the bedroom and the bed headboard.
- Yan Nian (延年) — Wu Qu (武曲), Metal. Longevity, harmonious relationships, marriage. Also a strong wealth star, and traditionally the peach blossom position.
- Fu Wei (伏位) — Fu Bi (輔弼), Wood. Steady growth and personal cultivation. It is your own direction, so it never fights you, but it is the weakest of the four.
- Liu Sha (六煞) — Wen Qu (文曲), Water. Money loss, arguments, gossip, accidents.
- Wu Gui (五鬼) — Lian Zhen (廉貞), Fire. Theft, fire, litigation, sudden illness.
- Huo Hai (禍害) — Lu Cun (祿存), Earth. Disputes, lawsuits, obstacles, being deceived.
- Jue Ming (絕命) — Po Jun (破軍), Metal. The most severe: sudden loss, health setbacks, disruption.
4. How do I use my Kua number at home?
Point your good directions at the things you use most, and put the hard ones behind you. The classical priority order is 門 (door), 主 (bed/headboard), 灶 (stove) — the Three Essentials of a dwelling.
- Bed — headboard pointing toward Tian Yi for health, or Yan Nian for relationships. Keep a solid wall behind it.
- Desk — sit facing Sheng Qi. If you work from home, this is the highest-leverage change in the room.
- Front door — ideally opening toward Sheng Qi or Yan Nian.
- Stove and bathroom — traditionally placed in a challenging direction, because those rooms already drain Qi; putting them in a good direction wastes a good sector.
- Shared homes — each person applies their own Kua number for their own bed and desk, while shared rooms follow the directions that suit the most people.
For 2026 specifically (丙午 Fire Horse year): the Tai Sui (太歲) sits in the South, and the annual Flying Star chart places the Star 5 (Misfortune) in the South as well — a rare double affliction on that sector. If South is one of your four inauspicious directions, this is the year to keep the South sector of your home quiet, uncluttered and free of construction. If South is your Fu Wei — your own direction, as for a Kua 9 Li chart — the classical advice is the same but for the opposite reason: you are being asked to hold a sector the year has made volatile.
5. Why do two Kua calculators give me different numbers?
Almost always one of three things: the year boundary, the Kua 5 rule, or a formula error. Here is where they disagree and which to trust.
- The year boundary. Classical Eight Mansions counts the Feng Shui year from Li Chun (立春), around February 4, because the human "air" opens in the Yin month — 天闢於子，地闢於丑，人建於寅. A January 20, 1985 birth is a 1984 Kua year; a February 10, 2026 birth is a 2026 Kua year, even though Lunar New Year 2026 did not arrive until February 17. Many modern calculators use Lunar New Year instead, which shifts everyone born in a January-to-mid-February window.
- The Kua 5 rule. Most calculators now use men → 2, women → 8. The deeper classical Three-Period (三元) method lodges the 5 differently depending on the period your birth falls in. The Eight Mansions Mirror (八宅明鏡) gives the lower period (1984–2043) as men lodging in 9 (Li, Fire) and women in 7 (Dui, Metal) — note these land in different groups, so a person in that window can change East or West depending on the school — while the upper period (1844–1923) lodges men in 8 (Gen) and women in 2 (Kun). The mainstream 八宅 rule is the safer default.
- The formula. Some sites use the "last two digits only" shortcut without the century correction, which breaks for anyone born in 2000 or later. Some use a 1900–1999-only formula and produce nonsense for post-2000 births.
The check that settles it: if your number comes out as 5, 0, or greater than 9, the calculator has not normalized the result. And if your Kua group contradicts your birth year — a man born in January 1942 landing in West Group when the year before and after both give East Group — check the Li Chun boundary first, because a wrong year flips the whole group. Across 1940–2030 there are 81 birth dates in the January 1 to February 3 window where the Li Chun convention and the Lunar New Year convention put a person in opposite groups, not merely a different number.
Key Takeaways
- A Kua number is a single digit (1–9) from your birth year and sex that assigns you to one of eight trigrams, four auspicious directions and four inauspicious ones.
- It is not BaZi. BaZi uses your full birth moment and the Day Master; the Kua number uses only birth year and sex and belongs to the Eight Mansions school of Feng Shui.
- Count from Li Chun (立春), around February 4 — not January 1, and not Lunar New Year.
- East Group is 1, 3, 4, 9; West Group is 2, 6, 7, 8. Their good directions are exact mirrors of each other.
- Kua 5 has no trigram. Mainstream rule: men lodge in 2 (Kun), women in 8 (Gen).
- The four good stars are Fu Wei, Sheng Qi, Tian Yi and Yan Nian; the four difficult ones are Liu Sha, Wu Gui, Huo Hai and Jue Ming.
- Practical order: door, bed, stove. Point your main door and desk at Sheng Qi, your headboard at Tian Yi or Yan Nian.
- In 2026 the South carries both the Tai Sui and Star 5 — the year's most double-afflicted sector.
中文
本命卦（mìng guà）是 1 到 9 之間的一個數字——由你的出生年份與性別推算——把你歸入《易經》八卦之一，並給你四個吉方與四個凶方。 它是八宅風水（八宅派）最核心的個人鑰匙，也是多數風水師見面第一個問的數字。
有一件事要先講清楚：本命卦不是你八字命盤的一部分。 八字用完整的出生時辰（年、月、日、時），以日主為全部推論的起點；本命卦只用出生年份與性別，屬於完全不同的一套系統。1990 年出生的人在八字裡是馬，但男命是坎一（水命，東四命），女命則是艮八（土命，西四命）。年柱只說「馬」，完全沒有告訴你床頭該朝哪個方位。
1. 本命卦怎麼算？
先把出生年份化到一位數，再套性別公式。 這裡的「年份」是以立春為界的太陽年，約在 2 月 4 日——不是 1 月 1 日，也不是農曆春節。
第一步 — 把年份化成一位數（S）。 出生年份的數字反覆相加，直到只剩一位數。
- 1984 → 1 + 9 + 8 + 4 = 22 → 2 + 2 = 4
- 1990 → 1 + 9 + 9 + 0 = 19 → 1 + 9 = 10 → 1 + 0 = 1
第二步 — 套用公式。 這個版本不需要做世紀修正：
| 性別 | 公式 | 歸位方式 |
|---|---|---|
| 男命 | 11 − S | 結果為 10 則記作 1 |
| 女命 | 4 + S | 結果超過 9 就減 9 |
第三步 — 處理五。 五居洛書中宮，不隸屬任何一卦，必須「寄」到鄰卦。主流八宅法：男寄坤二、女寄艮八，兩者同屬西四命。
實例 — 1991 年 7 月 20 日出生的女性。 S = 1 + 9 + 9 + 1 = 20 → 2 + 0 = 2。女命：4 + 2 = 6。本命卦為 6——乾卦（乾），金，西四命。
實例 — 1985 年 1 月 20 日出生的男性。 1985 年立春在 2 月 4 日 05:11，所以他的風水年仍是 1984 年。S = 22 → 4。男命：11 − 4 = 7。本命卦為 7——兌卦（兌），金，西四命。
網路上計算器用的版本。 多數計算器只取出生年份的末兩位，再套世紀規則。兩套系統數學上完全相同，只是長相不同：
| 出生年份 | 男命 | 女命 |
|---|---|---|
| 1901–1999 | 10 − S | 5 + S |
| 2000–2099 | 9 − S | 6 + S |
此時的 S 是只把末兩位相加化到一位數（1984 → 8 + 4 = 12 → 3）。公式之所以不同純粹是算術原因：1900 會在數字和裡多出一個 1，2000 多出 2，世紀表正好抵銷這個差額。
2. 八個本命卦各代表什麼？
每個數字對應一個卦、一種五行，以及東四命或西四命其中一組。
| 卦數 | 卦象 | 五行 | 組別 | 個性 |
|---|---|---|---|---|
| 1 | 坎 | 水 | 東四 | 深沉、適應力強、內省 |
| 2 | 坤 | 土 | 西四 | 承載、耐心、能托住人 |
| 3 | 震 | 木 | 東四 | 躁動、開創、勇猛 |
| 4 | 巽 | 木 | 東四 | 柔和、流通、善溝通 |
| 5 | — | 中土 | — | 寄卦：男寄二、女寄八 |
| 6 | 乾 | 金 | 西四 | 果決、有威、推動力強 |
| 7 | 兌 | 金 | 西四 | 口才佳、善交際、喜樂 |
| 8 | 艮 | 土 | 西四 | 沉穩、自守、界限分明 |
| 9 | 離 | 火 | 東四 | 明亮、透亮、重文化 |
分組之所以重要，是因為它決定你四個吉方是整組的：東四命（1、3、4、9）取正北、正南、正東、東南；西四命（2、6、7、8）取正西、西北、西南、東北。 兩組完全互為鏡像——一組的最好方向，正是另一組的最壞方向。
3. 我的四個吉方與四個凶方？
大遊年法依你的本卦，把八顆遊星分配到八個方位。 你自己的方位是伏位；由伏位起順時針，星序依古典歌訣乾六天五禍絕延生而定。
四個吉方（四吉）：
| 卦數 | 伏位 | 生氣 | 天醫 | 延年 |
|---|---|---|---|---|
| 1 坎 | 正北 | 東南 | 正東 | 正南 |
| 2 坤 | 西南 | 東北 | 正西 | 西北 |
| 3 震 | 正東 | 正南 | 正北 | 東南 |
| 4 巽 | 東南 | 正北 | 正南 | 正東 |
| 6 乾 | 西北 | 正西 | 東北 | 西南 |
| 7 兌 | 正西 | 西北 | 西南 | 東北 |
| 8 艮 | 東北 | 西南 | 西北 | 正西 |
| 9 離 | 正南 | 正東 | 東南 | 正北 |
四個凶方（四凶）：
| 卦數 | 六煞 | 五鬼 | 禍害 | 絕命 |
|---|---|---|---|---|
| 1 坎 | 西北 | 東北 | 正西 | 西南 |
| 2 坤 | 正南 | 東南 | 正東 | 正北 |
| 3 震 | 東北 | 西北 | 西南 | 正西 |
| 4 巽 | 正西 | 西南 | 西北 | 東北 |
| 6 乾 | 正北 | 正東 | 東南 | 正南 |
| 7 兌 | 東南 | 正南 | 正北 | 正東 |
| 8 艮 | 正東 | 正北 | 正南 | 東南 |
| 9 離 | 西南 | 正西 | 東北 | 西北 |
八星的實際含義：
- 生氣（貪狼木） — 四吉之首。主生機、成長、成就、新開始。大門、書桌與事業決策都朝向此方最吉。
- 天醫（巨門土） — 主健康、疾厄化解、貴人助佑。臥室與床頭的經典首選。
- 延年（武曲金） — 主長壽、婚姻和諧、感情滋長，同時也是旺財之星，傳統上也是桃花位。
- 伏位（輔弼木） — 主平穩上進與自我修養。這是你自己的方位，不會與你相剋，但四吉中力量最弱。
- 六煞（文曲水） — 主破財、口舌是非、小人、意外。
- 五鬼（廉貞火） — 主失竊、火災、官訟、突发急病。
- 禍害（祿存土） — 主爭執鬥毆、官非、阻擋、被騙。
- 絕命（破軍金） — 四凶中最重，主橫禍、破敗、健康急轉直下。
4. 本命卦在家裡怎麼用？
讓好方位對著你天天用的東西，凶方位留在身後。 古典次序是門（出入）、主（床位）、灶（廚灶）——陽宅三要。
- 床 — 床頭指向天醫（健康）或延年（感情），背後要有實牆。
- 書桌 — 面向生氣。在家工作的人，這是全屋改動效益最大的一項。
- 大門 — 盡量開向生氣或延年。
- 廚灶與廁所 — 傳統上放在凶方。廚廁本身就耗氣，放在吉位反而浪費。
- 多人共居 — 各人用自己命卦定自己的床與桌，共用空間則配合對多數人有力的方位。
2026 年（丙午火馬年）特別提醒： 太歲在正南，而流年飛星圖的五黃星也在正南——這個方位同時承受雙重凶煞。若正南在你四凶之列，今年應把屋宅正南區保持安靜、乾淨、不動土。若正南正好是你的伏位（如離九命），古典建議方向相同但理由相反：你是被要求「守住」一個被流年變得波動的方位。
5. 為什麼兩個本命卦網站算出來的不一樣？
幾乎都是三件事之一：換年界線、五卦的處理方式，或公式出錯。 這裡把它們攤開講。
- 換年界線。 古典八宅以立春為風水年界線，因為人的氣「建於寅」——天闢於子，地闢於丑，人建於寅。1985 年 1 月 20 日出生算 1984 命卦；2026 年 2 月 10 日出生已算 2026 命卦，儘管 2026 年春節要到 2 月 17 日才到。許多現代計算器改用農曆春節，於是每年 1 月到 2 月中旬出生的人整組對不上。
- 五卦的處理。 現今多數網站用男寄二、女寄八。更深的三元命卦法會依出生年所屬上、中、下元分別寄卦——《八宅明鏡》下元（1984–2043）為男寄離九、女寄兌七（注意這兩者分屬東、西四組，所以該年份段出生的人可能因派別不同而東西命互換）；上元（1844–1923）則為男寄艮八、女寄坤二。採用主流八宅規則最穩妥。
- 公式本身。 有些網站只用「年份末兩位」而沒有做世紀修正，2000 年以後出生的人就全錯了；有些只套 1900–1999 的公式，2000 年後出生會算出無意義的結果。
最快的自查方式： 如果算出來是 5、0 或大於 9，就是網站沒有做歸位。如果你的分組跟出生年份明顯矛盾——例如 1942 年 1 月出生的男命算成西四命，而前後兩年都算出東四命——先查立春界線，因為年份一旦算錯，整組都會翻轉。在 1940 至 2030 年之間，1 月 1 日至 2 月 3 日這個窗口共有 81 個出生日，立春派與春節派會把人分進完全相反的東四組或西四命，而不只是數字不同。
重點整理
- 本命卦是由出生年與性別推出的 1–9 的一位數，對應八卦、四個吉方與四個凶方。
- 它不等於八字。 八字用完整出生時辰與日主；本命卦只用年份與性別，屬八宅派。
- 以立春換年（約 2 月 4 日），不是 1 月 1 日，也不是農曆春節。
- 東四命是 1、3、4、9；西四命是 2、6、7、8，兩組吉方完全互為鏡像。
- 五卦無卦：主流規則男寄坤二、女寄艮八。
- 四吉為伏位、生氣、天醫、延年；四凶為六煞、五鬼、禍害、絕命。
- 實務次序：門、床、灶。 大門與書桌朝生氣，床頭朝天醫或延年。
- 2026 年正南方同時有太歲與五黃星，是全年最需要留意的凶方。
Frequently Asked Questions
What is a Kua number in Feng Shui?
A Kua number (命卦, also written Gua number or Ming Gua) is a single digit from 1 to 9, calculated from your birth year and sex, that assigns you to one of the eight trigrams of the I Ching. Through the Eight Mansions school of Feng Shui (八宅風水), it gives you four auspicious compass directions and four inauspicious ones. The trigram also fixes your Five Element (Water for Kan 1, Earth for Kun 2, Wood for Zhen 3 and Xun 4, Metal for Qian 6 and Dui 7, Earth for Gen 8, Fire for Li 9) and your group: East Group (1, 3, 4, 9) with North, South, East and Southeast, or West Group (2, 6, 7, 8) with West, Northwest, Southwest and Northeast.
How do I calculate my Kua number?
Add the digits of your birth year repeatedly until one digit remains — call it S. Then use 11 − S for men (if the result is 10, write 1) and 4 + S for women (if the result is above 9, subtract 9). If the result is 5, there is no central trigram, so the mainstream rule lodges it as 2 (Kun) for men and 8 (Gen) for women. The equivalent century-based version — men 10 − S and women 5 + S for births in 1901–1999, men 9 − S and women 6 + S for 2000 onward — uses the reduced sum of the last two digits only. Use the solar year beginning at Li Chun (立春, around February 4) rather than January 1 or Lunar New Year. A woman born 20 July 1991 gets S = 2, then 4 + 2 = 6, so Kua 6, Qian, West Group.
Is a Kua number the same as my BaZi or my Chinese zodiac?
No — it is a separate system that shares only the birth year. BaZi builds a full chart from your year, month, day and hour of birth, anchored on your Day Master (日主); the Kua number uses only your birth year and sex. The Chinese zodiac is one animal — the Earthly Branch of your BaZi year pillar. A 1990 birth is Horse in BaZi, but is Kua 1 Kan (East Group) for a man and Kua 8 Gen (West Group) for a woman. If you want your full BaZi chart — Day Master, Ten Gods, Five Element balance and Luck Pillars — generate it at the Mingyun Hub free BaZi tool, then use your Kua number for direction and layout.
What are my four lucky directions, and what should I do with them?
Your four auspicious directions are Fu Wei (伏位), your own direction; Sheng Qi (生氣), the strongest star for growth and career; Tian Yi (天醫), for health and recovery; and Yan Nian (延年), for longevity, relationships and marriage. In practice: face your desk toward Sheng Qi, point your headboard toward Tian Yi or Yan Nian, and let your main door open toward Sheng Qi or Yan Nian. The four to avoid are Liu Sha (六煞), Wu Gui (五鬼), Huo Hai (禍害) and Jue Ming (絕命) — traditionally where you place the stove and bathroom, which already drain Qi. For more room-by-room layout see our bedroom Feng Shui guide and the five general Feng Shui tips.
常見問題
本命卦是什麼？
本命卦（又稱卦數）是 1 到 9 之間的一個數字，由出生年份與性別推算，把你歸入《易經》八卦之一。在八宅風水的架構下，它給你四個吉方與四個凶方。卦象同時決定你的五行（坎一水、坤二土、震三木、巽四木、乾六金、兌七金、艮八土、離九火）與你的分組：**東四命（1、3、4、9）**取北、南、東、東南；**西四命（2、6、7、8）**取西、西北、西南、東北。
本命卦怎麼算？
把出生年份的數字反覆相加，直到只剩一位數 S。接著：男命用 11 − S（結果為 10 則記作 1），女命用 4 + S（結果超過 9 就減 9）。若結果是 5，因為中宮無卦，主流規則是男寄坤二、女寄艮八。等價的世紀版公式是：1901–1999 年男命 10 − S、女命 5 + S；2000 年後男命 9 − S、女命 6 + S，其中 S 只取年份末兩位相加化到一位數。年份要以立春（約 2 月 4 日）為界，不是 1 月 1 日，也不是農曆春節。試算：1991 年 7 月 20 日出生的女性，S = 2，4 + 2 = 6，所以本命卦 6，乾卦，西四命。
本命卦跟八字、生肖一樣嗎？
不一樣——它是另一套系統，只共用到出生年份這件事。 八字用年、月、日、時排出完整命盤，以日主為核心；本命卦只用出生年份與性別。生肖則是八字年柱的那一個地支。1990 年出生的人在八字裡是馬，但男命是坎一（東四命）、女命是艮八（西四命）。想要完整八字命盤——日主、十神、五行分佈與大運——可到 Mingyun Hub 免費八字排盤工具 輸入出生年月日時，方向與擺設則另外用本命卦。
我的四個吉方該怎麼用？
四個吉方是伏位（你自己的方位）、生氣（力量最強，主生機、職涯、財運）、天醫（主健康、化疾、貴人）與延年（主長壽、婚姻、感情）。實務上：書桌面向生氣、床頭指向天醫或延年、大門開向生氣或延年。四凶為六煞、五鬼、禍害、絕命——廚房與廁所傳統上放在凶位，因為這兩處本身就耗氣，放吉位反而浪費。更多房間佈局細節，可看我們的臥室風水床位指南與五大風水通用建議。