Zi Wei Dou Shu: Reading the Twelve Palaces, the Stars and the Four Transformations
I once screenshotted my Zi Wei chart and zoomed in until I could read every character in every box. The twelve boxes held two, three, sometimes four stars each, and next to some of them sat a small marker for wealth or for obstruction. For a while I assumed that reading a chart meant looking up all these names, until I realised the order was wrong — the first thing to look at is not the star, but what that box is in charge of.
What Zi Wei Dou Shu Looks At
Zi Wei Dou Shu divides a chart into twelve palaces, each corresponding to one field of life, then places stars into those palaces and uses the Four Transformations to mark where energy is moving. It is good at questions about separate fields of life: what state a particular field has been in over these years, and which kinds of force are at work in it.
What you need to prepare: the year, month, day and hour of birth. The hour decides where the life palace sits, which makes it the single most important input for the whole chart.
What Each of the Twelve Palaces Covers
The life palace covers the overall picture and the person's own traits; the siblings palace covers brothers, sisters and peers; the spouse palace covers partnership; the children palace covers the next generation; the wealth palace covers resources and the way money is made; the health palace covers the body and how well it absorbs pressure; the travel palace covers going out and the environment outside; the friends palace covers the people one deals with; the career palace covers work and standing; the property palace covers the home and family holdings; the wellbeing palace covers the state of mind; the parents palace covers elders and relationships with seniors.
When reading a chart, the usual order is to look at the life palace and its San Fang Si Zheng (the three directions and four positions) first, then find the palace that matches the field being asked about. For a question about a relationship, the spouse palace and its triangle matter most; for a question about work, the career palace does — and this is precisely where Zi Wei is more field-by-field than BaZi.
What the Four Transformations Mark
The Four Transformations are the transformations of wealth, of power, of fame and of obstruction. They mark where energy is moving: which kind of force gets amplified and which one gets stuck. The same palace reads completely differently with a wealth transformation in it than with an obstruction transformation — the first is what it looks like when resources come in, the second is the place that has to be dealt with again and again.
One thing worth remembering is that the Four Transformations follow the heavenly stems, so it matters a great deal to ask whose transformations they are: the birth-year transformations show the underlying colour, the decade transformations show these ten years, and the annual transformations show the current year. Mixing them together gets confusing.
Casting the Chart in Three Steps
- Fix the life palace: set where the life palace falls from the hour of birth and the lunar month, then lay out the other eleven palaces in their fixed order.
- Place the stars: put the fourteen major stars, along with the various supporting and challenging stars, into their corresponding palaces by rule.
- Mark the Four Transformations and the periods: mark the transformations from the stem of the birth year, then lay out the major fortune cycles and the annual flows, turning a static chart into one that changes with time.
Origins
Zi Wei Dou Shu is attributed to Chen Tuan of the Song dynasty, and its earliest surviving systematic text is the Complete Book of Zi Wei Dou Shu from the Ming dynasty. Its structure resembles a table sorted by category, which is why it is so often brought in to fill the gaps in BaZi when it comes to separate fields of life.
Where It Stops
First, what it plainly does not read: Zi Wei does not judge whether a single event will succeed or fail, and whether something can be done this week is not the kind of question it is good at. Next comes the input: an inaccurate birth hour directly moves where the life palace sits, which shifts all the later palaces as a whole and lowers how much weight the conclusion can carry. And since different schools differ over which supporting stars to keep and over how the transformations are reckoned, it is best to confirm which set of conventions is being used before reading a chart.
What the Result Looks Like
You receive a chart of twelve palaces marked with the major stars, the Four Transformations and the periods: the twelve palaces explain how things are distributed across fields of life, the transformations explain the movement, and the periods explain how things change over these years. Read together, the three parts are more useful than memorising a few star names on their own.
What the Three-Way and Four-Corner Combinations Look At
The San Fang Si Zheng are among the most frequently mentioned concepts in Zi Wei Dou Shu, and also among the easiest to gloss over vaguely. Put simply: a palace cannot be read in isolation. It has to be read together with the palaces that form triangles with it and the one directly opposite.
Take the spouse palace. Its triangle is formed by two other palaces set three positions away, and its four corners include the opposite palace. Together they make up the full context of that field of life — reading the spouse palace on its own easily gives a one-sided picture, while bringing the whole combination in shows which forces in that field cooperate and which pull against each other.
This is also why the same star in the same palace can be read completely differently for two people: their San Fang Si Zheng structures are not the same.
How Luck Cycles and Annual Flows Sit on the Chart
Once the chart is cast, time has to be laid over it. The decade cycle usually advances in blocks of ten years, falling on different palaces — which means that once every ten years the palace in focus shifts as a whole. The annual flow then refines that further for the current year.
There is a practical order for reading it: first see which field of life the current decade cycle falls in, then see what the annual flow adds within that cycle. Reading the annual flow first, the other way round, leaves you easily pulled off course by the small swings of one year.
When a Chart Does Not Make Sense, Start From These Three Places
The information density of a Zi Wei chart is very high, and beginners often stare blankly at a chart full of star names. A more effective approach is to look at three places first:
The life palace: the starting point of the whole chart, so establish the person's basic picture first. The palace the current decade cycle sits in: this shows which field the ten years are focused on, and it often matches your own sense of things better than any single star. The palaces touched by the Four Transformations: the doors where energy comes in and out are usually here, and the places that keep going wrong or keep going smoothly can mostly be traced to this layer.
Once you have looked at those three, go back to the individual stars to fill in detail, and the reading flows much more easily. As for the palaces that still do not make sense, leave them for now — they are usually not the focus of the present stage.
FAQ
Q: What are the life master and body master? They are two additional reference points, used to add to the description of a person's overall traits and style of action. They do not replace the life palace; they serve as a supporting clue.
Q: How is an empty palace read? An empty palace does not mean that field of life is blank. A common approach is to read it through the combination of the opposite palace and the San Fang Si Zheng palaces, and that needs the whole structure behind it; it is not suitable for drawing a conclusion on its own.
Q: Why do two charts with the same major stars read differently? Because the supporting stars, the challenging stars, the palaces where the transformations fall and the arrangement of the periods are all different. A Zi Wei chart carries a lot of information; the major stars are only the skeleton.
Q: If I do not know my birth hour, can a chart still be cast? The chart that comes out may simply be wrong. The safe approach is to confirm the hour first, or narrow it down to a specific time window, and then consider whether an hour correction is needed.
Q: Should the lunar or the Gregorian birthday be used? Either works, as long as the chart is cast on one consistent calendar basis. One thing to watch: a lunar birthday can involve a leap month, so saying clearly whether the date you give is lunar or Gregorian saves a good deal of error.
Q: Will people with the same major stars be alike in character? Not necessarily. The major stars are only the skeleton; the supporting stars, the challenging stars, the palaces where the transformations fall and the periods together decide what a chart looks like. The same major star falling in different palaces also points in different directions.
Q: Half of the twelve palaces have nothing to do with what I am asking. Do I need to read them? You can skip them. The focus of a reading is the palace connected to the field you asked about and its San Fang Si Zheng; the other palaces can stay as background reference, and you do not have to read every one of them.
Where to Start
If you have an accurate year, month, day and hour of birth, you can go straight into the flow on this site: describe what you want to ask in plain language and the system will suggest a method. You can specify Zi Wei Dou Shu alone, and you will then see the twelve-palace chart and the periods, which you can export for your own records. In the Zhanbu Mizhi flow, the chart and the basis behind it both come from data, not from a grid filled in by hand.
Disclaimer: This article covers traditional culture and folk custom. It is for entertainment and self-reflection only, and does not constitute medical, psychological, investment, legal or marital decision advice. Please do not submit sensitive personal information such as ID numbers or detailed addresses. If you experience persistent insomnia, anxiety or physical discomfort, please consult a doctor or a qualified professional.
Sources
- Complete Book of Zi Wei Dou Shu, Wikisource: https://zh.wikisource.org/wiki/紫微斗數全書 (accessed 2026-09-17)