Meaning of the Gyeong-O (庚午) Pillar — Personality, Structure, and the 7th of the Sexagenary Cycle

The Gyeong-O (庚午) pillar is the 7th of the Sexagenary Cycle (六十甲子). It represents the Heavenly Stem Gyeong (庚), which is Yang Metal (hard iron or raw ore), sitting atop the Earthly Branch O (午), the horse of passion. It is the image of iron being heated in a furnace—a symbol of loyalty forged through intense heat.

At a Glance

Category	Content
Hanja	庚午
Composition	Heavenly Stem Gyeong (Yang Metal) + Earthly Branch O (Horse, Fire)
Nabeum (Phonetic Element)	Nobang-to (路傍土 - Roadside Earth)
Daily Branch 12 Stages of Qi	Bath (沐浴)
Daily Branch 10 Gods (Primary Qi)	Direct Officer (正官)
Corresponding Years	1930, 1990
Key Keywords	Loyalty, Honor, Sense of Justice

Personality and Temperament

The Gyeong-O pillar represents a “warrior” archetype, characterized by a strong sense of justice, loyalty, and a high regard for honor. They are straightforward and passionate, which attracts many followers, and they cannot tolerate injustice.

• Strengths: A strong sense of justice and loyalty, and a charismatic, open-hearted personality that draws people in.
• Points of Caution: They can be hot-tempered; it is important to be mindful of impulsive outbursts.

Structural Analysis — Saju Interpretation

The Gyeong (庚) Day Master sits on the O (午) Earthly Branch. Based on the primary qi of the daily branch, the 10 God is the Direct Officer (正官), and the 12 Stages of Qi is the Bath (沐浴). The Direct Officer is the star of honor and order, providing a foundation of dignity and a desire for recognition within established norms. The “Bath” stage indicates that while their senses and charm shine brightly, the structure is also prone to fluctuations.

In terms of Nabeum (phonetic element), it belongs to Nobang-to (Roadside Earth), a classification frequently used in traditional Saju studies to group pillars sharing the same phonetic element.

Learn More

• Curious about your own pillar?: Saju Calculator (oiyo.net)
• View all Heavenly Stems, Earthly Branches, 10 Gods, and 12 Stages of Qi: Saju Dictionary
• View all 60 pillars of the Sexagenary Cycle: Sexagenary Cycle Pillar Dictionary

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While the pillar (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.