BAZI KNOWLEDGE BASE
The Thirty Nayin in BaZi: Complete Sixty-Jiazi Table and Use
Nayin is a separate system that gives a named element and a traditional image to a complete pair of chart symbols. It groups the sixty pairs into thirty neighboring two-pair groups. Each group shares a name, such as Gold in the Sea. This explains where a label like “Metal life” may come from. It does not replace the other element relationships in the chart.
What does Nayin actually classify?
The sixty Jiazi pair the Ten Heavenly Stems (the ten symbols used in the upper position of each chart column) and Twelve Earthly Branches (the twelve symbols used in the lower position of each chart column) into sixty complete combinations. Nayin assigns one name to each adjacent pair: 甲子 and 乙丑, for example, both belong to Gold in the Sea. Thirty names therefore cover all sixty Jiazi.
The Metal in Gold in the Sea is a Nayin class. 甲子 still contains a Wood stem and Water branch; 乙丑 still contains a Wood stem and Earth branch. Keeping the two layers separate prevents a Nayin label from being added to ordinary elemental strength.
Complete table of the thirty Nayin and sixty Jiazi
Find the complete stem–branch combination of one pillar, then locate that same pair in the table. Do not join a stem and branch from different pillars or infer Nayin from the zodiac animal alone.
| No. | Nayin name | Jiazi pair | Nayin phase |
|---|---|---|---|
| 1 | Gold in the Sea (海中金) | 甲子 · 乙丑 | Metal |
| 2 | Fire in the Furnace (炉中火) | 丙寅 · 丁卯 | Fire |
| 3 | Great Forest Wood (大林木) | 戊辰 · 己巳 | Wood |
| 4 | Roadside Earth (路旁土（路傍土）) | 庚午 · 辛未 | Earth |
| 5 | Sword Edge Gold (剑锋金) | 壬申 · 癸酉 | Metal |
| 6 | Mountain Fire (山头火) | 甲戌 · 乙亥 | Fire |
| 7 | Water Under the Stream (涧下水) | 丙子 · 丁丑 | Water |
| 8 | Earth on the City Wall (城头土) | 戊寅 · 己卯 | Earth |
| 9 | White Wax Gold (白蜡金) | 庚辰 · 辛巳 | Metal |
| 10 | Willow Wood (杨柳木) | 壬午 · 癸未 | Wood |
| 11 | Well Water (井泉水（泉中水）) | 甲申 · 乙酉 | Water |
| 12 | Earth on the Rooftop (屋上土) | 丙戌 · 丁亥 | Earth |
| 13 | Thunder Fire (霹雳火) | 戊子 · 己丑 | Fire |
| 14 | Pine and Cypress Wood (松柏木) | 庚寅 · 辛卯 | Wood |
| 15 | Ever-flowing Water (长流水) | 壬辰 · 癸巳 | Water |
| 16 | Gold in the Sand (沙中金) | 甲午 · 乙未 | Metal |
| 17 | Fire at the Foot of the Mountain (山下火) | 丙申 · 丁酉 | Fire |
| 18 | Plains Wood (平地木) | 戊戌 · 己亥 | Wood |
| 19 | Earth on the Wall (壁上土) | 庚子 · 辛丑 | Earth |
| 20 | Gold Foil (金箔金) | 壬寅 · 癸卯 | Metal |
| 21 | Lamp Fire (覆灯火) | 甲辰 · 乙巳 | Fire |
| 22 | Heavenly River Water (天河水) | 丙午 · 丁未 | Water |
| 23 | Earth of the Great Station (大驿土) | 戊申 · 己酉 | Earth |
| 24 | Hairpin Gold (钗钏金) | 庚戌 · 辛亥 | Metal |
| 25 | Mulberry Wood (桑柘木) | 壬子 · 癸丑 | Wood |
| 26 | Water of the Great Stream (大溪水) | 甲寅 · 乙卯 | Water |
| 27 | Sand Earth (沙中土) | 丙辰 · 丁巳 | Earth |
| 28 | Heavenly Fire (天上火) | 戊午 · 己未 | Fire |
| 29 | Pomegranate Wood (石榴木) | 庚申 · 辛酉 | Wood |
| 30 | Water of the Great Sea (大海水) | 壬戌 · 癸亥 | Water |
Worked example: how should Year Pillar 甲子 be read?
If the Year Pillar (the two-symbol column for the birth year) is 甲子, the first table row returns Gold in the Sea. The lookup is now complete. 甲 remains a Wood stem and 子 a Water branch; the word Metal in the Nayin name does not convert the pillar into two ordinary Metal components.
A 甲 in the Month Pillar and 子 in the Day Pillar do not combine into 甲子. Every Year, Month, Day and Hour Pillar can have its own Nayin, but position only changes the context being discussed. It does not automatically establish personality, work, marriage or fortune.
Where does Nayin belong in a reading?
Verify calendar rules, timezone and the Four Pillars first. Preserve stems, branches, hidden stems, Month Command and Day-Master relations. Add each pillar’s Nayin only when the historical classification helps answer the question, and retain the source’s exact companion-pair conditions.
Nayin is useful for locating historical terms, comparing why two Jiazi share an image and recognizing the interpretive layer used in an older text. It should not supply a missing phase, choose a Useful God (the element or role assigned a key function by a particular interpretation method), rank a life or turn thirty images into one score.
Four distinctions that prevent most errors
- Nayin phase is different from Day-Master phase.
- Year-Pillar Nayin is not a complete identity for a person.
- Sea, fire, wood, earth and metal names are traditional images, not physical substances or risk forecasts.
- Extended rules from different texts or schools need named sources rather than one blended formula.
Continue reading
- Why Nayin cannot replace ordinary Five-Phase analysis
Compare Nayin with the Day Master and chart strength.
- See one complete Nayin reference page
Use 甲子 and 乙丑 to follow the pair and source image.
All topics in this category
- What Is Water of the Great Sea (大海水) in BaZi?
- What Is Great Forest Wood (大林木) in BaZi?
- What Is Lamp Fire (覆燈火) in BaZi?
- What Is Earth of the Great Station (大驛土) in BaZi?
- What Is Earth on the Rooftop (屋上土) in BaZi?
- What Is Hairpin Gold (釵釧金) in BaZi?
- What Is Mulberry Wood (桑柘木) in BaZi?
- What Is Gold in the Sand (沙中金) in BaZi?
- What Is Earth on the City Wall (城頭土) in BaZi?
- What Is Water of the Great Stream (大溪水) in BaZi?
- What Is Willow Wood (楊柳木) in BaZi?
- What Is Water Under the Stream (澗下水) in BaZi?
- Fire at the Foot of the Mountain: the meaning of Shan Xia Huo
- What Is Pine and Cypress Wood (松柏木) in BaZi?
- What Is Heavenly River Water (天河水) in BaZi?
- What Is Gold in the Sea (海中金) in BaZi?
- What Is Plains Wood (平地木) in BaZi?
- What Is White Wax Gold (白蠟金) in BaZi?
- What Is Earth on the Wall (壁上土) in BaZi?
- What Is Ever-flowing Water (長流水) in BaZi?
- What Is Sword Edge Gold (劍鋒金) in BaZi?
- What Is Gold Foil (金箔金) in BaZi?
- What Is Roadside Earth (路傍土) in BaZi?
- What Is Fire in the Furnace (爐中火) in BaZi?
- What Is Thunder Fire (霹靂火) in BaZi?
- What Is Mountain Fire (山頭火) in BaZi?
- What Is Pomegranate Wood (石榴木) in BaZi?
- What Is Heavenly Fire (天上火) in BaZi?
- What Is Well Water (井泉水) in BaZi?
- What Is Sand Earth (沙中土) in BaZi?