BAZI KNOWLEDGE BASE
What Is Gold in the Sea (海中金) in BaZi?
Gold in the Sea is the metal-class Nayin (a separate named element classification for a complete pair of chart symbols) assigned to 甲子 and 乙丑. San Ming Tong Hui pictures treasure or pearls concealed beneath water, then distinguishes how 甲子 may emerge and how 乙丑 may require strong fire to form; the image does not prove hidden talent, wealth, secrecy, or ordinary metal strength.
What does Gold in the Sea establish first?
Gold in the Sea is the Nayin name for a complete 甲子 or 乙丑 pillar, and its Nayin phase is Metal. It may occur in the Year, Month, Day or Hour Pillar (the two-symbol column for the birth hour). The lookup unit is always one stem–branch pair in the same pillar, never a single character or a cross-pillar combination.
This lookup establishes one historical classification. 甲 remains a Wood stem and 子 a Water branch; 乙 remains a Wood stem and 丑 a Earth branch. Nayin Metal does not overwrite those ordinary Five-Phase facts.
How can you check for Gold in the Sea?
Read each complete pillar in an already calculated chart. A pillar that is exactly 甲子 or 乙丑 has the Gold in the Sea Nayin. One matching character, a zodiac animal or a real-world object is insufficient.
| Complete Jiazi | Stem phase | Branch phase | Nayin name | Nayin phase |
|---|---|---|---|---|
| 甲子 | Wood | Water | Gold in the Sea | Metal |
| 乙丑 | Wood | Earth | Gold in the Sea | Metal |
Worked example: how should a 甲子 Year Pillar be recorded?
Suppose the Year Pillar (the two-symbol column for the birth year) is 甲子. The table returns Gold in the Sea. A clear record says: Year 甲子; stem 甲 is Wood, branch 子 is Water; Nayin is Gold in the Sea, classed as Metal. This keeps the Nayin field separate from ordinary elemental data.
If 乙 appears only in the Month Pillar (the two-symbol column for the birth month) and 丑 only in the Day Pillar (the two-symbol column for the birth day), they do not form the same-pillar 乙丑 combination and do not create Gold in the Sea. Complete pairing comes before image interpretation.
Why does the source use the name Gold in the Sea?
San Ming Tong Hui compares this Nayin to treasure in a dragon palace and a pearl inside a shell. It treats 甲子 as metal that may appear through specified empty-clash or paired conditions, while 乙丑 is a metal storehouse that may need strong fire for forming. Furnace Fire, weaker fires, water, earth, wood, and other metals are then separated by exact pair and position. The source itself records competing readings, so “fire always reveals the treasure” and “water always protects it” are not valid universal rules. Distinguish the 甲子 and 乙丑 source logic. Name the exact fire, water, earth, or metal before applying a rule.
What value does Gold in the Sea offer a modern reader?
Its practical value is precise lookup: 甲子 and 乙丑 share this Nayin name, which lets you locate the pair’s distinctive source image and conditions. If another pillar enters an older rule, record that full Jiazi, its location and the source before drawing a comparison.
Keep the reading order explicit: verify calendar inputs and the Four Pillars; retain stems, branches and hidden stems; evaluate Month Command and Day-Master structure; only then add Gold in the Sea as a Nayin layer. One Nayin name does not determine strength, Useful God, personality, work, relationships, wealth, health or event timing.
Continue reading
- Complete table of the thirty Nayin
Return to the sixty-Jiazi sequence and verify neighboring pairs.
- Compare another Metal Nayin: Sword Edge Gold
A shared phase does not make two images or conditions interchangeable.
- Metal in ordinary Five-Phase analysis
Separate Nayin classification from actual chart relations.