Tai Yi Shen Shu: The Least Common of the Three Styles
While going through sources I kept running into the term "Three Styles". I had already heard of the first two — Qi Men Dun Jia and Da Liu Ren — but the third one made me pause: Tai Yi Shen Shu. The same term appears in book after book, all of them about this one method, yet passages that actually explain something with it are painfully few.
What This Method Looks At
Tai Yi Shen Shu takes the Tai Yi nine-palace layout as its base board, arranging factors such as Tai Yi, the host count and the guest count across the eight directions and the central palace. It is used to observe broad trends and the situation between two sides: who holds the initiative, and which way a matter is likely to move. It is strong on the overall picture and weak on whether one small thing will succeed or fail.
Information to prepare: as with traditional divination generally, you usually need a clear question and a time point; if a person is involved, birth information as well.
How the Three Styles Divide the Work
Qi Men Dun Jia stresses combinations of time and direction; Da Liu Ren stresses the unfolding of events; Tai Yi Shen Shu stresses the macro picture and relations between numbers. The three share a common root but divide the work differently, and folk tradition also has a saying that Tai Yi reads the state, Qi Men reads affairs and Liu Ren reads people. Sayings of that kind are generalisations made between schools, and need not be treated as a rigid division of labour.
Its Limits
Work with Tai Yi involves complicated calendar handling and accumulated-year reckoning. Surviving material is thin, techniques vary widely between transmissions, and few modern tools are available. It therefore suits a reader who wants to understand the Three Styles as a system rather than someone looking for a first-choice method. If someone offers a firm claim about a specific matter on the strength of a single set of numbers, first check whether they explain what their figures rest on.
Frequently Asked Questions
Q: Is Tai Yi Shen Shu still practical today? Its framework can still be read, but there is little material that can be checked and the conventions are not consistent. If you want to use it to examine a real problem, it is better to consult more mature methods alongside it.
Q: How does it differ from Qi Men Dun Jia? Both work on the nine-palace grid: Qi Men looks at concrete directions and the useful element under a given combination of time and space, while Tai Yi looks at the overall posture and relations between numbers. The first is closer to a specific matter, the second to the wider situation.
Q: How should the host count and the guest count be understood? A first step is to read the host count as yourself or your own side, and the guest count as the other party or external conditions, then compare their strength and their positions relative to each other. What it describes is a comparison of postures, not a verdict of victory or defeat for either side — which is exactly where it leans macro. In reading, you normally look at each side's strength first, then at where the two stand relative to each other within the same picture: establish the posture first, then talk about what to do.
Q: Why does the material on Tai Yi look so messy? Transmission of this technique was scattered, calendar and accumulated-year handling differed from school to school, and later texts copied one another, so the same term can carry different meanings in different editions. When using it, pick an edition whose material is clear and whose conventions are consistent, and note in your conclusion which convention you relied on. The worst case is using edition A today and edition B tomorrow: the meaning of the same term drifts along with them, and the two sets of conclusions no longer line up.
Where to Start
If you are curious about this system, you can go straight into the process here: describe what you want to ask in plain language and the system will suggest a method. You can also specify Tai Yi Shen Shu, then see the chart and a reading, and export the result if you want to keep it. In the Zhanbu Mizhi process, the reasoning and the evidence behind it are given alongside the result.
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
- Siku Quanshu Zongmu Tiyao (Annotated General Catalogue of the Complete Library in Four Branches), juan 108 (Masters section, divination category, list of extant titles), Wikisource: https://zh.wikisource.org/wiki/四庫全書總目提要/卷108 (accessed 2026-09-17)