Mysticism June 11, 2026 3 min read

Meaning of the Byeongja (丙子) Ilju — Personality, Structure, and 13th Pillar of the Sexagenary Cycle

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OIYO Research Team Contributor

The Byeongja (丙子) Ilju is the 13th pillar of the sexagenary cycle. It represents the Heavenly Stem Byeong—the Yang Fire of the sun that illuminates all things—sitting atop the Earthly Branch Ja, the wise Rat of midnight. It is the image of the sun rising over a calm lake, where the light reflects off the water, shining twofold.

At a Glance

CategoryContent
Hanja丙子
CompositionHeavenly Stem Byeong (Yang Fire) + Earthly Branch Ja (Rat, Water)
Nabeum (Phonetic Element)Ganhasu (澗下水 - Water under the stream)
Ilji 12 Stages of LifeTae (胎 - Conception)
Ilji 10 Gods (Main Qi)Jeonggwan (正官 - Proper Officer)
Relevant Years1936 · 1996
Key KeywordsHonor, Etiquette, Dignity

Personality and Temperament

The Byeongja Ilju is a gentlemanly type who is polite and possesses a strong desire for honor. They combine bright charisma with calm wisdom, allowing them to shine in public settings.

  • Strengths: Dignified manners, public reliability, and bright ambition.
  • Points of Caution: They may focus too much on saving face, making it easy to overlook practical benefits or the expression of their inner feelings.

Structural Analysis — Saju Interpretation

The Byeong (丙) Day Master sits atop the Ja (子) Earthly Branch. Based on the main qi of the daily branch, the 10 Gods correspond to Jeonggwan (正官), and the 12 Stages of Life correspond to Tae (胎). Jeonggwan is the star of honor and order, forming a foundation of dignity that seeks recognition within established norms. As it sits in the stage of ‘Tae’ (Conception), it is a structure of conceptualization that always harbors new possibilities.

In terms of Nabeum (phonetic element), it belongs to Ganhasu (澗下水), a classification frequently used in traditional Saju analysis to group pillars sharing the same phonetic element.

Learn More


While the Ilju is the central axis of a Saju chart, 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.

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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.