Four-Pillar Life Periods vs. Luck Cycles (限運與大運)
Compare static pillar life-period overlays with calculated moving Luck Pillars, including inputs, boundaries, uses, and limits.
Overview
Four-pillar life periods and Luck Cycles are different layers. Life-period divisions assign broad age contexts to the four natal positions under a school-specific table. Luck Pillars are calculated moving stem-branch periods with direction and start-age conventions. One supplies a positional overlay; the other introduces timed qi that interacts with the natal chart. They may be compared, but never substituted for each other.
At a glance
- Life-period layer
- Static natal-position overlay
- Luck-cycle layer
- Calculated moving stem-branch periods
- Life-period input
- Named school and age table
- Luck-cycle inputs
- Chart, direction, start age, and convention
- Rule
- Compare layers; never substitute them
- Reading order
- Natal overlay first, moving cycle second
Define the two clocks separately
A pillar life-period method maps ages onto Year, Month, Day, and Hour positions without changing the natal symbols. Its boundaries come from the selected teaching convention.
A Luck Pillar supplies a new stem-branch pair for a calculated multi-year period. Direction and start age depend on disclosed rules and birth data.
- Label the static and moving layers.
- Publish each method’s inputs.
Do not copy one method’s ages into the other
Life-period tables can begin at fixed ages, while Luck Pillars often begin at a fractional age derived from a solar-term interval. Their transitions therefore need not coincide.
Rounding, nominal age, elapsed age, and start-of-year policy can shift displayed boundaries. Store the exact convention rather than only a rounded label.
- Keep independent boundary calculations.
- Retain unrounded start-age data where available.
Combine them as two evidence layers
First read the natal pillar position, then the active Luck Pillar’s relation to the entire natal chart. If a school also uses life periods, add that context as a third, explicitly named layer.
Convergence can raise interpretive attention but does not guarantee an event. Divergence is useful counterevidence and should remain visible.
- Show each layer before synthesis.
- Do not double-count the same symbol.
Keep timing claims conditional
Neither method can promise a job, marriage, pregnancy, illness, accident, wealth, or death. They describe symbolic timing conditions with limited resolution.
Use contemporary evidence and professional guidance for real decisions, and state uncertainty near every calculated or conventional boundary.
- No deterministic event forecast.
- Disclose boundary uncertainty.
Sources and editorial basis
- 《淵海子平》 (Yuanhai Ziping)四柱先後語境保留原局年月日時不變；大運則另以順逆與起運規則加入移動干支，兩者不是同一時間層A foundational Ziping reference for branch months, hidden stems, roots, and stem-branch relationships.
- 《三命通會》 (Sanming Tonghui)卷二及歲運諸論合看原命與行運干支，運柱作用不能由固定柱位的年齡對應替代A historical compilation covering stems and branches, Ten Gods, Nayin, Shen Sha, and multiple classical pattern systems.
- OpenFate Editorial Methodology限運與大運各自保存輸入、起訖和年齡口徑，允許比較但不互相代算、不重複計權，也不承諾具體事件OpenFate separates deterministic chart calculation, traditional interpretation, and modern editorial explanation.