The Twelve Palaces of Zi Wei Dou Shu
The twelve palaces are the frame of a Purple Star chart and the reason the system reads the way it does. Where a BaZi chart states its conclusions in the language of elements and relations, Purple Star Astrology gives every major domain of a life its own seat in the grid and then asks which stars have taken that seat. The palaces are fixed; the stars that visit them are not. Reading a chart is largely the work of reading twelve seats in turn and then relating them to one another.
The twelve palaces
Each palace carries a name in Chinese, a fixed sphere of life, and a place in the sequence that never changes.
| Palace | Chinese | Sphere of life |
|---|---|---|
| Life | 命宮 mìnggōng | Core character, innate potential, life direction |
| Siblings | 兄弟宮 xiōngdì gōng | Siblings, close peers, cooperative relationships |
| Spouse | 夫妻宮 fūqī gōng | Marriage, partnership, the spouse's character |
| Children | 子女宮 zǐnǚ gōng | Children, fertility, relations with the next generation |
| Wealth | 財帛宮 cáibó gōng | Earning, money, attitude to resources |
| Health | 疾厄宮 jí'è gōng | Constitution, vulnerabilities, patterns of illness |
| Travel | 遷移宮 qiānyí gōng | Movement, relocation, how one appears outside the home |
| Friends | 交友宮 jiāoyǒu gōng | Friends, colleagues, subordinates, staff |
| Career | 官祿宮 guānlù gōng | Work, position, professional achievement |
| Property | 田宅宮 tiánzhái gōng | Home, property, family assets |
| Fortune | 福德宮 fúdé gōng | Inner life, enjoyment, spiritual well-being |
| Parents | 父母宮 fùmǔ gōng | Parents, upbringing, inherited conditions |
Two of the names appear in the classical sources under more than one form. The Friends palace is also written 奴僕宮 (núpú gōng), literally the palace of servants, and the Career palace is also 事業宮 (shìyè gōng). The glossary of this knowledge base keeps the working names above; the older ones are noted because they still turn up in translations.
How the palaces are arranged
The palaces are not scattered at random. Once the Life palace is fixed by the birth month and hour, the other eleven follow it around the frame in the fixed order of the table, one palace to each remaining branch. The sequence is invariable, which is why the palaces always keep the same relationships to one another: the Wealth palace always stands a third of the way around from the Life palace, the Travel palace always sits opposite it, and so on.
That fixed geometry is the point. It means a palace is never read alone but always in the company of its trines — the two palaces a third of the way around the ring — and the palace directly opposite. The Life palace, for instance, is read together with Wealth, Career and Travel: what a person makes, what they do, and how the world sees them. Two charts with the same stars can read very differently because the seats those stars occupy, and the palaces they sit beside, are different.
Reading a palace
A palace is judged on three things, and in this order.
The stars it holds. The major stars are the first statement; the supporting stars and the Four Transformations qualify it. A palace with no major star is not empty — it borrows from its opposite and trines, which is why the geometry matters.
The branch beneath it. The palace sits on an Earthly Branch, with that branch's direction, element and hidden stems. The branch gives the seat its elemental colour and links the chart to the Earthly Branches it shares with BaZi.
Its partners. The two trines and the opposite palace either support or strain the reading, and the relation between them is where much of the interpretation is made.
The Body palace is a thirteenth marker rather than a thirteenth palace. It uses one of the twelve seats, is set from the same month and hour as the Life palace, and is usually read as a secondary emphasis — where the life gathers and settles — rather than as a sphere of its own.
Where the palaces get their meaning
The palaces say where a life speaks; the fourteen major stars say what is being said there. A palace without a star is a room waiting for one, and a star without a palace is a word without a sentence. Read the two together, and then apply the Four Transformations to see which of the twelve seats carries the year's wealth, power, recognition and obstruction. The calculator draws the filled grid from your own birth data.
Why are there twelve palaces and not eight or ten?
Because the chart is built on the twelve Earthly Branches, and one palace is assigned to each. The number is set by the framework the system shares with the whole Chinese calendar, not chosen to fit a list of life areas.
What does an empty palace mean?
It means no major star has its seat there, not that the sphere of life is absent. An empty palace is read through its opposite and its trines, which lend it the stars it lacks. Classical practice treats an empty palace as borrowed rather than blank.
Which palace matters most?
The Life palace is read first, because it describes the person who owns the chart, but it is not read in isolation. Its trines and its opposite complete it, so Wealth, Career and Travel carry as much weight in the reading of a character as the Life palace itself.
Are the palaces the same for everyone?
The names and the order are the same for everyone; only the seat each name lands on changes, because the month and hour of birth move the starting point. That is why two people can share a star and still receive different readings.
