What is gunghap?
Gunghap (궁합) is the reading of two people's charts side by side in saju (사주), the Korean reading of the four pillars of birth. It looks at four things: the two day masters and the relation between them, the spouse palace in each chart, what each chart is short of and whether the other carries it, and the stretch of time each person is in now.
The name is old. Gung (宮) is a palace or a room and hap (合) a joining, so the word is roughly the matching of rooms. In a traditional wedding the groom's family wrote his four pillars on a slip of paper, the sajudanja (사주단자), and sent it to the bride's house, where her family compared the two charts and set the wedding date from the comparison. It was a step in arranging a household between two families, rather than a test of whether two people loved each other.
Two words come up constantly. Gyeotgunghap (겉궁합) is the outside match, the twelve zodiac animals taken from the birth years alone, which sorts a whole population into twelve boxes. Sokgunghap (속궁합) is the inside match, the full eight characters compared. In ordinary speech sokgunghap has drifted towards meaning physical compatibility; in the practice it means the whole chart comparison.
How are the two day masters compared?
The day master is the heavenly stem of the birth day, the character standing for the person, and comparing the two is where gunghap begins. Five pairs of stems are called hap, a joining, and they read as an easy pull, a sense that the other is restful to be near.
| Pair | Elements | How it tends to read |
|---|---|---|
| Gap (甲) and Gi (己) | yang wood, yin earth | One grows upward, one gives ground to grow in |
| Eul (乙) and Gyeong (庚) | yin wood, yang metal | Bending meets edge. Each steadies what the other lacks |
| Byeong (丙) and Sin (辛) | yang fire, yin metal | Broad warmth meets fine care |
| Jeong (丁) and Im (壬) | yin fire, yang water | A small steady light over a wide dark surface |
| Mu (戊) and Gye (癸) | yang earth, yin water | Solid ground and the thin stream that keeps it alive |
Most pairs are not one of these five, which is not a finding of any kind. Two of the same stem reads as recognising yourself in someone and competing with it. One element feeding the other, Im (壬), yang water beside Eul (乙), yin wood, is warm and liable to tip into one of them doing all the feeding. Metal against wood, one controlling the other, is a pairing where somebody trims somebody: useful when both know it, wearing when only one does.
What is the spouse palace?
The branch directly under the day stem is the spouse palace, the place a partner occupies inside your own chart. From your chart alone it says something about what you tend to want close by: solid and quiet, or moving and full of talk.
Between two charts the day branches are compared for the usual joinings and clashes. Yukhap (육합) and samhap (삼합) are joinings, read as falling into step without effort. Chung (충) is a clash, and it is the one that frightens people. What chung honestly describes is friction at close range: two people who find it hard to be lukewarm with each other. That is how the contact feels, not a statement about whether anything lasts, and plenty of long marriages have it. Wonjin (원진) is subtler and collects dramatic names in popular writing, which the page on sinsal unpicks.
The spouse palace sits in the day pillar, which needs only your birth date, so it can be read without a birth time. The wider comparison uses the hour pillar too, and what changes when the hour is unknown applies here.
Does one chart supply what the other is short of?
This is the most appealing part of gunghap and the most oversold. Every chart has a distribution across the five elements, and most are thin somewhere. Someone born in the sixth lunar month with three fires and no water runs hot and dry. If the other chart carries Gye (癸), yin water, in the day stem with a water branch under it, the old reading is that one supplies what the other lacks.
Taken plainly that is a real observation, and taken loosely it becomes a fantasy about being completed by somebody. What it looks like in life is small and practical: their ordinary habits slow you down, and you find their company cooling when yours is the chart that overheats. Nobody hands anybody an element. It runs the other way too, where what you already have too much of arrives in quantity: two people who both run hot want to settle early where the quiet goes.
Why does the timing each person is in matter as much as the pairing?
Because two charts never meet in the abstract. Each person is inside a ten year cycle and a yearly cycle, and those change which parts of a chart are under pressure. Much of what arrives described as a compatibility problem turns out, once both sets of cycles are drawn, to be a timing problem in one of the two people.
The common shape is one person entering a stretch that presses on work, or health, or the part of the chart that governs being at home, and going quieter and shorter tempered. The other reads that as a change of feeling towards them. Nothing about the pairing moved. What a reading can do is name the stretch and say roughly how long it runs, which stops a hard eighteen months being taken as a verdict on the relationship. The ten year cycles and the yearly cycle are where that work is done.
Do Korean families really check gunghap before an engagement?
Less than the drama version suggests, more than people outside Korea expect. Historically it was a genuine step: matchmakers negotiated marriages between families and the gunghap reading was part of that. That world is gone and the practice survives in a softer form.
What it looks like now is mostly recreational. Saju cafes sit in Hongdae, Gangnam and Myeongdong, couples in their late twenties and thirties go in together for half an hour, and the reading gets treated roughly the way a personality quiz does elsewhere. Some parents, generally older ones, still want a reading before an engagement, and in a few families it is a real condition. Korean wedding planners tend to say the same thing about those cases and I think they are right: when gunghap ends an engagement it is usually not the charts. It is a family that already had a reservation about the match and found a form of words for it that sounds impersonal.
Why is a compatibility score out of a hundred a bad way to think about it?
Three reasons, and none is that the number came out low. The first is that a percentage needs a scale and there is no agreed one. How much a day master joining weighs against a day branch clash, and either against element supply, is a judgement each school makes differently, which is why the same couple gets seventy eight from one app and fifty one from the next. Why two readings of the same chart differ is that problem, doubled.
The second is that a number throws away everything worth having. The useful output of a comparison is a sentence like: you two are likelier to argue about money than about time, and you both go quiet rather than loud when hurt. A score carries none of that, and the description is the only part anyone can act on.
The third is what a number does to the reader. Once a couple has a figure, that is what they remember, and the question changes from what should we watch for into did we pass. A relationship is not a thing that passes.
What will a careful reader not say about another person's chart?
Three things, better stated as rules than preferences.
- No reader should tell you to leave a partner. A chart describes tendencies and timing. A decision about a life belongs to the person living it, and anyone who takes it from you on the strength of eight characters has overstepped.
- A chart is not read to pass judgement on someone who did not ask. If you send a partner's birth details without them knowing, what can honestly be done with that is small. Describing an absent person to somebody else is not work I am willing to do.
- Difficulty is never handed over on its own. Where two charts grate, it is written with the stretch of time it belongs to and something practical attached, because a warning with nothing attached is just a fright.
What this page cannot tell you
This is general explanation. It sets out what a gunghap reading looks at and how much weight the practice carries in Korea, and nothing about you or anyone you are with, because that depends on all eight characters of each chart and the cycles passing over both.
Worth saying plainly what I do and do not offer. Mulsangjae's reports are written for one person at a time. Each report takes one chart, sets it down as a single landscape and writes about that person, so this page explains gunghap rather than selling a couples reading. Much of what people want from a compatibility reading is really a question about themselves, so your own chart read properly is usually the better place to start. The sample report shows the shape of a finished one. Reports are written in Korean at present and an English edition is in preparation, with a waitlist on the main page.