What Zi Wei synastry is, and how it differs from one chart
One chart divides a person into twelve palaces. Synastry sets two finished charts side by side and asks how palaces of the same name relate. A star in the other person’s Spouse Palace and a star in their Travel Palace are not read the same way. That layer appears only when both charts are open.
The comparison has four layers. Palace mirroring records whether matching branches are the same, a six-combination, a three-harmony, an opposition, harm or punishment. Birth-year transformations follow Lu, Quan, Ke and Ji from one chart into a palace of the other, then reverse the direction. Star overlays record where one chart’s major stars fall in the other. The element bureaus are marked as generating, overcoming or the same phase. All four are structure. None of them becomes a marriage score.
One pair of branches is enough to see the rule. Yin and hai are a six-combination. Yin and shen are an opposition. If the Spouse Palaces are yin and hai, the line says six-combination. If they are yin and shen, it says opposition. Yin and si can be both harm and punishment, and both lines stay. A line is not dropped because it sounds worse.
The scenes this comparison claims are an overview, a romance and a marriage. Parent and child, family, and a business partnership are outside that frame, and the tool does not offer them. The older paid report is a different address and a different flow. It is not the calculation log for this comparison.
Palace names are in the twelve palaces. Where a transformation lands is in the four transformations. When both birth times are ready, compare two Zi Wei charts.
What the comparison contains
The result is four tables you can check line by line, plus five themes that only count. Each block below says what is being compared and what one line looks like.
Twelve palaces mirrored
The twelve pairs of matching palaces are compared once each: Life with Life, Siblings with Siblings, Spouse with Spouse, through to Parents. The relation is one of six: the same branch, six-combination, three-harmony, opposition, harm or punishment. The same branch means both palaces sit on one earthly branch.
One pair can meet two relations at once. Yin and si are both harm and part of a punishment trio, so the chart lists two lines. They are not merged, and neither line is dropped. The table shows both palace names, both branches and the relation that holds, so you can find the same palaces on the two natal charts.
Birth-year transformations
Take one person’s year stem and find which stars carry Lu, Quan, Ke and Ji, then see which palace of the other chart holds each star. Repeat with the other year stem, so their four transformations are located in the first chart. Direction is not optional. One person’s Ji in the other’s Spouse Palace, and the reverse, are two lines.
Every line names whose transformation it is, which palace it leaves, and which palace it enters. Both ends can be found on their own charts. Lu is not written as good news, and Ji is not written as bad news. The line marks the landing.
Star overlays
The major stars in one person’s Life, Spouse, Career and other palaces are located in the other chart, then the other way around. What you are reading is the distribution. Zi Wei in the other Spouse Palace and Zi Wei in the other Travel Palace are read differently, so the palace comes first.
Star names and brightness are in the fourteen major stars. An overlay does not grade those stars, and it does not replace the palace mirroring.
Element bureaus and the temper of the stars
Each chart has one element bureau. The comparison writes generate, overcome or the same phase. It does not turn the bureau name into a level of luck. The major stars of the Life and Spouse palaces are set beside each other once: one palace may decide, the other may hold. That is texture, not a ranking of the two people.
Five themes
Emotional bond, day-to-day pace, support and pressure, practical base, talk and decisions. Palace mirrors and transformations that are already calculated are filed under these five. Each theme only counts how many lines landed there.
A count is not a grade, and the five themes are not added together. There is no “bond 80, pressure 20”. Different weighting tables can turn the same comparison into opposite numbers.
How Zi Wei synastry differs from BaZi and Western synastry
All three start from two birth times. They do not compare the same objects. Read one row at a time. Do not write a palace name, a day pillar and an aspect as if they were one sentence.
| Compared | Zi Wei synastry | BaZi match | Western synastry |
|---|---|---|---|
| What is set side by side | Two twelve-palace charts | Two sets of four pillars | Two natal charts |
| Where a landing is written | The branch of matching palaces, and which palace a transformation enters | Year branch, day branch and day master | Which house a planet enters, and the aspect between them |
| Is there one total | Lines are counted. Nothing is scored | Each school has its own weighting | Aspects are usual. One total is not |
| What this page will not do | No parent-child chart, no business partnership | A day pillar is not rewritten as a Zi Wei palace | A zodiac house is not rewritten as a Zi Wei palace |
How the four pillars are taken is in BaZi. Houses and aspects are in Western astrology.
Where to start reading
Put the question in one sentence first. You are looking at pace, at where feeling lands, or at how practical life fits. If the question is still open, all twelve pairs sit in front of you and there is nowhere to stop.
Then read the branch relation of matching palaces, and then which palace a transformation leaves and which palace it enters. Star overlays come after those two layers, to check where the major stars fell. The five themes come last. They only file lines that are already there.
Lu or Ji in the Spouse Palace only says that the star landed there. It is not a ruling on marriage, a breakup, or who was right. An opposition of branches is the same kind of fact: structure between two palaces, not the end of a relationship.
To cast a pair yourself, compare two Zi Wei charts. Where a sentence should stop is in how to read a chart. Which scenes this comparison covers is in palace mirrors.
Edited by fateshow. The method is in the editorial method. The sources are two Zi Wei charts cast on the current rules, the branch relations, the transformations in both directions, the star overlays and the element bureaus.
Common questions
- What is Zi Wei synastry good for?
- Questions about how two people act on each other: pace, where feeling lands, who brings support or pressure, and how practical life fits. Whether to stay together is yours to decide.
- Can I make decisions from this comparison?
- No. Branch relations and transformation landings describe structure between two palaces. They are not a verdict, and they do not predict how a relationship ends. For reference only — not a substitute for medical, legal, or financial advice.
- Why is there no compatibility score?
- A score is not calculated from the palaces. Weighting tables differ, and the same comparison can be turned into opposite numbers. What stays here are the palace relations and transformation landings you can check line by line.
- How reliable is the comparison?
- The same birth records and the same rules produce the same comparison. What is fixed is the landing and the branch relation, not how the relationship will develop. If the hour is wrong, all twelve palaces move, and the comparison moves with them.
- Do both people need an exact hour?
- Yes. The hour places the Life Palace on a branch, and the other eleven palaces follow. Without one person’s hour, the matching palaces have no stable branch, and a transformation has no palace to enter.
- Can this be cast for a same-sex couple?
- Yes. The comparison uses both birth dates and times. The romantic and marriage views are not limited by gender. What comes out is still the palace mirroring and the transformation landings.
- Can I look after a breakup?
- Yes. A breakup does not change two charts that have already been cast. The palace relations and transformation landings are still there. You can look back at how the two charts acted on each other. The comparison does not predict a reunion.
- What if the comparison is hard to read?
- Go back to where to start: write the question, then the matching palaces, then the direction of the transformations. If a palace name or a transformation still does not match, look up the twelve palaces and the four transformations. You do not have to learn the whole method first.
When both charts are compared, the palace mirrors, transformation landings, star overlays and element bureaus sit in one result.