Qimen Xun Shou: Resolving Hidden Jia to Six Instruments
A Xun head is the Jia-led first pair of a ten-pair segment in the sixty Jiazi cycle. Qimen uses the Xun head to resolve Jia through one of the Six Instruments…
Overview
A Xun head is the Jia-led first pair of a ten-pair segment in the sixty Jiazi cycle. Qimen uses the Xun head to resolve Jia through one of the Six Instruments so a day or hour Jia can be located on the board. The fixed mapping is Jia Zi–Wu, Jia Xu–Ji, Jia Shen–Geng, Jia Wu–Xin, Jia Chen–Ren, and Jia Yin–Gui. Resolve the day and hour pillars independently because each can belong to a different Xun.
At a glance
- Page role
- Reproducible calculation rule
- Terms covered
- Xun head · hidden Jia mapping
- Verification focus
- The fixed mapping is Jia Zi–Wu, Jia Xu–Ji, Jia Shen–Geng, Jia Wu–Xin, Jia Chen–Ren, and Jia Yin–Gui. Resolve the day and hour pillars independently because each can belong to a different Xun.
- Stop rule
- Do not locate Jia by a memorized single substitute. The full pillar determines its Xun head; omit the anchor if the source pillar is unavailable.
Direct answer and scope
A Xun head is the Jia-led first pair of a ten-pair segment in the sixty Jiazi cycle. Qimen uses the Xun head to resolve Jia through one of the Six Instruments so a day or hour Jia can be located on the board.
- Names and related terms: Xun head
- Names and related terms: hidden Jia mapping
How the rule is formed or checked
The fixed mapping is Jia Zi–Wu, Jia Xu–Ji, Jia Shen–Geng, Jia Wu–Xin, Jia Chen–Ren, and Jia Yin–Gui. Resolve the day and hour pillars independently because each can belong to a different Xun.
Keep the cast moment, UTC offset, method version, palace, and interacting symbols visible before adopting an interpretation.
How to use this in a reading
Store source pillar, full stem-branch pair, Xun head, resolved board stem, method, and palace. The hidden mapping is part of evidence provenance, especially when it determines the asker or matter anchor.
- Name the visible chart fact before assigning symbolic meaning.
- Compare the asker and matter anchors with every layer in their palaces.
- Record at least one supporting condition and one counter-signal.
- End with a reversible action and an observable review point.
Worked contrast
Jia Chen day resolves to Ren while Jia Zi hour resolves to Wu. A single generic “Jia palace” would erase the two anchors and can falsely report same-palace or reverse their five-element relation.
Common mistake and limit
Do not locate Jia by a memorized single substitute. The full pillar determines its Xun head; omit the anchor if the source pillar is unavailable.
Sources and editorial basis
- 《奇門遁甲統宗》卷二《奇門遁甲統宗》卷二 cited chapter: six 旬首 mappings, 甲子遁戊 through 甲寅遁癸.Classical text used for the six Xun-head mappings: Jia Zi hides in Wu, Jia Xu in Ji, Jia Shen in Geng, Jia Wu in Xin, Jia Chen in Ren, and Jia Yin in Gui. It does not establish one universal modern casting school.
- 《煙波釣叟歌》Wikisource lines 112–220: nine palaces, 陰陽遁, 三元, 值符/值使, 三奇六儀, 伏吟/反吟, gates, stars, vigor, 擊刑, 入墓, and selected patterns.A public-domain classical verse used only for the rule passages it actually states, including nine palaces, Yin and Yang Dun, Three Wonders and Six Instruments, Chief Star and Gate, gate and star sequences, vigor, and selected conditions. Legendary origin verses are not presented as verified history.
- OpenFate Qimen hour-chart methodOpenFate docs/QIMEN_SYSTEM.md, “Professional calculation contract,” “Interpretation and evidence contract,” and “Rule-source map,” source-reviewed 2026-09-12.Product-specific reference for OpenFate’s fixed-offset civil-time, hour-Qimen, rotating-plate, Chaibu implementation and its deterministic chart fields. A source review on 2026-09-12 does not prove live deployment, other schools, or predictive validity.