陰遁一局 (Yin Dun 1) is one of the 18 Dun Periods (遁局) of Qi Men Dun Jia — the temporal axis of the system. The 18 dun periods divide the year into 9 yang dun (陽遁, the half-year of expansive forward-rotating energy) and 9 yin dun (陰遁, the half-year of receding backward-rotating energy). Yin Dun 1 — anchored at the north palace, backward rotation; consultations emphasise career consolidation and reflective integration.
陰遁一局: classical reading and solar-term coverage
陰遁一局 is the energetic configuration that operates during specific solar terms in the year. Each dun period anchors the chart at a specific palace and rotates the components in a specific direction (forward for yang dun, backward for yin dun). Consultations made under this dun period carry the period's distinctive register.
Classical attributes
Yang or yin:陰遁 (yin)
Number: 1 of 9
Anchor palace: north (坎一宮)
Rotation: backward (counterclockwise — yin dun convention)
Tier: auspicious
Domain: Career consolidation, communication retreat, intellectual integration
When this dun period operates
陰遁一局 operates during specific solar-term ranges within the year:
處暑 End of Heat (middle third)
秋分 Autumn Equinox (lower third)
立冬 Beginning of Winter (middle third)
The exact mapping of solar-term thirds to dun-period numbers is the chart-casting work that classical doctrine treats as practitioner-only — the QMDJ Bootcamp covers this rotation logic in detail.
General register for 陰遁一局 consultations
Yin Dun 1 anchors at the north palace with backward rotation, giving the period a register of consolidating career and intellectual progress. Consultations made under this dun emphasise wrapping up career-mobility cycles, finalising communications, integrating intellectual work that began in Yang Dun 1. The water-element resonance in retreat supports reflective rather than expansive consultations.
What consultations during 陰遁一局 emphasise
The dun period is the foundational temporal layer of any QMDJ consultation. It is the “canvas” on which the gate / star / spirit / stem distribution gets drawn. Consultations made during 陰遁一局 inherit the period's auspicious register as a baseline modulating influence — and within that, the specific question's gate × palace × star pattern determines actionable guidance.
Why generic 陰遁一局 interpretation fails
The dun period is one layer of the consultation, not the whole reading. The same 陰遁一局 produces very different actionable readings depending on the specific question asked, the time-of-day chart, and the consultant's own chart context. Generic per-dun guidance can name the foundational register and the temporal anchoring, but cannot tell you what to do for your specific question. Master Sean Chan’s QMDJ forecasting consultation reads the dun period alongside the full chart cast for your question.
Practical priorities
Identify whether your consultation falls under 陰遁一局 based on the solar terms above. Within each solar term, the dun period further subdivides by upper / middle / lower thirds — a chart-aware practitioner determines the exact dun.
Read the dun period as the foundational temporal layer of your consultation. The dun's register is the canvas; the gate / star / spirit / stem pattern is the painting drawn on it.
Book a forecasting consultation via QMDJ forecasting service for any high-stakes question made during 陰遁一局. Generic per-dun reference is no substitute for an actual chart consultation.
Frequently asked questions
What is 陰遁一局?
Yin Dun 1 — anchored at the north palace, backward rotation; consultations emphasise career consolidation and reflective integration. The period anchors at the north palace and rotates backward (counterclockwise).
When does 陰遁一局 operate?
陰遁一局 operates during the following solar-term thirds: 處暑 End of Heat (middle third); 秋分 Autumn Equinox (lower third); 立冬 Beginning of Winter (middle third). The exact determination of which dun number is operating at a given moment requires chart-casting work that is the domain of the QMDJ Bootcamp curriculum and chart-aware consultation.
Should I avoid acting during 陰遁一局?
The period's general register is auspicious — favourable for consultations aligned with its domain (career consolidation, communication retreat, intellectual integration). However, the specific consultation reading depends on the chart cast for your question. Chart-aware reading completes the interpretation.
QI MEN DUN JIA FORECASTING
Get a chart-aware QMDJ reading for your specific question.
Master Sean Chan’s Qi Men Dun Jia forecasting consultation reads the specific question you bring against the current dun period’s chart. The reading identifies which gates / stars / spirits are activating for your question, what classical patterns are present, and the favourable timing window for your action. Zero generic advice — every consultation is chart-specific.
Master Sean Chan’s free Qi Men Dun Jia calculator plots the current chart for any time of day. Use it to see the current dun period’s gate / star / spirit / stem distribution across the nine palaces — useful for self-study, but no substitute for chart-aware reading of a specific question.
Master Sean Chan’s QMDJ Bootcamp takes you from beginner through intermediate — chart casting from date and time, the dun-period mechanism, the heaven/earth board rotation, and how to read the 9 stars / 8 gates / 8 spirits / 9 palaces / 9 stems for actual consultation questions. The bootcamp teaches the methodology these reference pages deliberately omit, so you can read charts for yourself.