Mysticism June 11, 2026 2 min read

Meaning of the Gyeong-In (庚寅) Ilju — Personality, Structure, and the 27th of the Sexagenary Cycle

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OIYO Research Team Contributor

The Gyeong-In (庚寅) Ilju is the 27th pillar of the sexagenary cycle. It is a combination where the Heavenly Stem Gyeong (庚), representing hard iron or raw ore (Yang Metal), sits upon the Earthly Branch In (寅), representing the valiant tiger (Wood). It is the image of an axe entering a tiger’s forest—a figure that clears a path without hesitation.

At a Glance

CategoryContent
Hanja庚寅
CompositionHeavenly Stem Gyeong (Yang Metal) + Earthly Branch In (Tiger, Wood)
Nabeum OhaengSongbaekmok (松柏木, Pine and Cypress Wood)
Ilji 12 Stages of LifeJeol (絶, Extinction)
Ilji 10 Gods (Main Qi)Pyeonjae (偏財, Indirect Wealth)
Relevant Years1950 · 2010
Key KeywordsPioneering, Resourcefulness, Decisiveness

Personality and Temperament

The Gyeong-In Ilju is an active, pioneer-type personality with excellent business acumen. They are loyal and quick to make decisions, making them adept at opening up new markets and creating new opportunities.

  • Strengths: Quick decision-making and action, business sense, loyalty.
  • Points of Caution: They tend to take excessive risks when their momentum is high. They require a strategist or advisor to act as a “brake.”

Structural Reading — Myeongri Interpretation

The Gyeong (庚) Day Master sits on the In (寅) Branch. Based on the main qi of the daily branch, the 10 God is Pyeonjae (Indirect Wealth), and the 12 Stages of Life is Jeol (Extinction). Pyeonjae is the star of liquid assets—the sense for managing money and opportunities is embedded in the daily branch. Because it sits in the stage of “Extinction,” it is a dynamic structure characterized by repeated changes and comebacks.

In terms of Nabeum Ohaeng, it belongs to Songbaekmok (Pine and Cypress Wood), a classification frequently used in traditional Myeongri alongside other pillars sharing the same Nabeum.

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The Ilju is the central axis of a Saju, but it represents only two of the eight characters. Its manifestation varies greatly depending on its relationship with the other characters, so please use this as a starting point for self-understanding.

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OIYO Research Team

Research Team

The OIYO research team structures material from psychometric scales, statistics, and academic literature. We name both the popular framing and its scholarly limits, so each guide works as a tool for reflection rather than a verdict.