Meaning of the Gyeongja (庚子) Ilju — Personality, Structure, and 37th Pillar of the Sexagenary Cycle
The Gyeongja (庚子) Ilju is the 37th pillar of the Sexagenary cycle. It consists of the Heavenly Stem Gyeong (Yang Metal), representing hard iron or raw ore, sitting atop the Earthly Branch Ja (Rat), representing the wisdom of the deep night. It is the image of iron being tempered in the cold water of midwinter—a symbol of brilliance sharpened by the cold.
At a Glance
| Category | Content |
|---|---|
| Hanja | 庚子 |
| Composition | Heavenly Stem Gyeong (Yang Metal) + Earthly Branch Ja (Rat, Water) |
| Nabeum Ohaeng | Byeoksangto (壁上土) |
| Ilji 12-Stage Life Cycle | Sa (死, Death) |
| Ilji 10-Gods (Main Qi) | Sanggwan (傷官, Hurting Officer) |
| Corresponding Years | 1960 · 2020 |
| Key Keywords | Brilliance, Criticism, Innovation |
Personality and Temperament
The Gyeongja Ilju is an innovator with an extraordinary mind and a strong critical spirit. With the sharp edge of the Sanggwan (Hurting Officer), they are adept at breaking down the old to establish the new.
- Strengths: Exceptional intellect, analytical skills, and reformative drive.
- Points of Caution: Their sharp tongue can leave deep wounds. A blade is most valuable when used for surgery.
Reading the Structure — Myeongri Interpretation
The Gyeong (庚) Day Master sits atop the Ja (子) Earthly Branch. Based on the main Qi of the Ilji (Day Branch), the 10-God is Sanggwan (傷官), and the 12-stage life cycle is Sa (死). Sanggwan is the star of eloquence and creativity; this expressive power that breaks molds is both their charm and the seed of potential controversy. The ‘Sa’ (Death) stage indicates a structure of deep immersion, focusing on one path.
In terms of Nabeum Ohaeng, it belongs to Byeoksangto (壁上土, Wall Earth), a classification often used in traditional Myeongri alongside paired pillars sharing the same Nabeum.
Learn More
- Curious about your own Ilju?: Saju Calculator (oiyo.net)
- View all Heavenly Stems, Earthly Branches, 10-Gods, and 12-Stage Life Cycles: Saju Dictionary
- View all 60 pillars of the Sexagenary cycle: Sexagenary Cycle Ilju Dictionary
The Ilju is the central axis of a Saju chart, but it represents only two of the eight characters. Its manifestation varies significantly depending on its relationship with the other characters, so please use this as a starting point for self-understanding.
OIYO Research Team
Research TeamThe 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.