Eul (乙) and Gyeong (庚) Compatibility: The Vine and the Iron Trellis
Eul (을 乙) Yin Wood and Gyeong (경 庚) Yang Metal form the stem combination 乙庚合, which transforms toward Metal. Eul sees Gyeong as Direct Officer and Gyeong sees Eul as Direct Wealth, the classical husband-star and wife-star roles. The usual image is a flowering vine on an iron trellis: the softest Wood and the hardest Metal, held together by attraction.
The elemental dynamic
Metal controls Wood, and the polarities are opposite. In theory Gyeong, the axe, should threaten Eul, the vine. In practice the combination changes the story. A stem combination (합 合 hap) binds two stems together, and readers describe this one as Gyeong choosing to hold rather than cut. Gyeong supplies the structure Eul has always looked for; Eul softens Gyeong's edges and gives it something to protect.
It also helps to compare Eul's two Metal partners. Sin (辛), Yin Metal, clashes with Eul. Gyeong, Yang Metal, combines with it. The difference is polarity: same-polarity control breeds friction, while this opposite-polarity pair turns control into partnership.
How each sees the other
Eul sees Gyeong as Direct Officer (정관 正官 jeonggwan). Direct Officer is the controlling element in the opposite polarity: legitimate authority, reputation, rules, responsibility. In a woman's chart it is the classical husband star, so an Eul woman with a Gyeong partner is the textbook case. Neutrally, Eul sees in Gyeong someone decisive and principled, a person who makes Eul feel safe enough to grow.
Gyeong sees Eul as Direct Wealth (정재 正財 jeongjae). Direct Wealth is the element you control in the opposite polarity: steady resources, care for the practical, a life built carefully. In a man's chart it is the classical wife star, the mirror of the same pattern. Neutrally, Gyeong sees Eul as someone worth committing to and taking care of.
These gendered roles come from the classical family model. In any couple, the structure is the same: one partner reads the other as protective order, and the other reads back substance worth keeping.
Combination or clash
Eul and Gyeong form the 乙庚 combination (을경합금 乙庚合金 eulgyeong hapgeum), with Metal as the transformed element. Some texts call it the "combination of benevolence and righteousness" (인의지합 仁義之合), pairing Wood's virtue of kindness with Metal's virtue of justice. There is no stem clash between them.
Schools differ on how much transformation to read into two Day Masters. Most treat the combination as attraction and mutual binding, not as Eul becoming Metal. Note that the transformed element is Gyeong's own. Some readers take this to mean the relationship leans toward Gyeong's terms, and suggest Eul keep its own interests alive deliberately.
In love
Often a strong mutual attraction: the decisive one and the gracious one. Gyeong's bluntness tends to land softer on Eul than on others, and Eul's diplomacy helps Gyeong in social settings. The risks are Gyeong's protectiveness tipping into control, and Eul bending so far that it disappears into the pair.
At work
A natural leader-and-diplomat pairing. Gyeong makes the hard calls; Eul builds the relationships that make those calls stick. Eul's quiet influence over Gyeong's decisions is often larger than outsiders guess.
Making it work
- Eul: keep friendships, work and goals that belong only to you.
- Gyeong: ask before deciding for both of you. Direct Officer works best as fair order.
- Use the combination's strength, mutual loyalty, as the base for honest disagreement.
Day Master compatibility is one layer. Korean compatibility reading (궁합 宮合 gunghap) compares whole charts, including both day branches (the spouse palace), element balance and luck pillar timing. See Eul Yin Wood and Gyeong Yang Metal, the compatibility index, or check both Day Masters with the free day pillar calculator.
FAQ
Do Eul and Gyeong combine?
Yes. They form the 乙庚 stem combination, whose transformed element is Metal. It is read as strong mutual attraction and binding.
What Ten Gods do Eul and Gyeong see?
Eul sees Gyeong as Direct Officer, the classical husband star. Gyeong sees Eul as Direct Wealth, the classical wife star.
Why does Eul clash with Sin but combine with Gyeong?
Both are Metal, but Sin shares Eul's Yin polarity and forms the 乙辛 clash, while Gyeong is Yang and forms the combination. Polarity changes the character of the relationship.
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