A huge boulder on a dry autumn mountain, iron red in the evening light.
Gyeong-sul sets raw metal, 庚, on the Dog, 戌, dry autumn earth that stores fire. Earth produces metal, and the fire inside the Dog tempers it. The picture is a great rock on an autumn mountain, iron in its veins.
People with this day pillar are often described as strong, decisive and principled, with natural authority. You sit on the Outsider mind, read as independent thinking and unusual knowledge. The tradition sees a commanding presence and a strong sense of justice.
With others you tend to be loyal, direct and protective, and you may take charge by default. The growth point is gentleness: strength is easier to follow when it listens first.
Strengths
- Decisiveness
- Natural authority
- Loyalty
Growth edges
- Listening before leading
- Softening its tone
- Sharing decisions
What sits inside Gyeong-sul
The branch 戌 Sul holds hidden stems (지장간 jijanggan). Seen from the day master 庚, each one takes a ten god role. The last one listed is the main stem, so this pillar is said to sit on the Outsider mind. What feeds your element, same polarity: unusual knowledge, intuition and independent study.
| Hidden stem | Ten god for 庚 |
|---|---|
| 辛 Sin, yin metal (9 days) | Rival 겁재 |
| 丁 Jeong, yin fire (3 days) | Order 정관 |
| 戊 Mu, yang earth (18 days) | Outsider mind 편인 |
In the twelve stage life cycle (십이운성 sibi unseong), 庚 in 戌 stands at Easing (쇠 衰): past the peak, read as experience, caution and a calmer strength.
A question to sit with
Where could you lead by listening?
Upcoming Gyeong-sul days
The day pillar repeats every sixty days. The next Gyeong-sul days are 3 October 2026, 2 December 2026, 31 January 2027, 1 April 2027.