Zi Wei Dou Shu or Da Liu Ren: which should you read?
They answer different questions. Zi Wei Dou Shu is strongest on reading separate areas of life on their own terms. Da Liu Ren is strongest on one specific event and how it resolves. Run on one identical birth they do not contradict each other so much as describe different things.
The same person, both ways
One birth, 15 June 1990, 07:30, Hong Kong, run through both systems:
| Zi Wei Dou Shu 紫微斗數 | Da Liu Ren 大六壬 | |
|---|---|---|
| Reads | The lunar date and hour, placed on twelve palaces | The moment a question is asked, not the birth |
| Says | Life Palace 寅 with 七杀 (Seven Killings), Earth 5 bureau | A 三傳 sequence derived by the 《六壬大全》 method |
| Works in | Stars in palaces, each palace a domain of life | A three-stage sequence for the question |
| Best at | Reading separate areas of life on their own terms | One specific event and how it resolves |
The real difference
Zi Wei Dou Shu works in stars in palaces, each palace a domain of life. Da Liu Ren works in a three-stage sequence for the question. There is no direct translation between the two, so they are better used as separate readings than merged into one.
These answer different kinds of question. Zi Wei Dou Shu reads your birth and describes something stable. Da Liu Ren reads the moment you ask and speaks to one decision. Comparing their conclusions directly is a category error.
Which should you use
- Zi Wei Dou Shu if your question is about reading separate areas of life on their own terms.
- Da Liu Ren if your question is about one specific event and how it resolves.
- Both if you want to know whether a theme holds up when the machinery changes. That is the only thing reading two systems buys you, and it is worth more than it sounds.
Meridian casts both from one set of birth details, so you can see where they agree and where they part company without entering your data twice or trusting anyone's summary.
Recurrence across unrelated systems is not proof that either is true. It does tell you a reading is not an artefact of one method's machinery, which is the honest version of what comparing traditions is good for.
Both headline results computed by Meridian's engines on 2 August 2026 from one identical birth: 15 June 1990, 07:30, Hong Kong. The engines are deterministic, so the same input returns the same chart.
This page compares how two systems calculate. It does not interpret a chart and is not advice.