Yin and Yang in Saju: What “Yang Fire” and “Yin Fire” Mean
If you have looked at a Saju chart, you will have seen labels such as “Yang Wood” or “Yin Water”. The second word is the element. The first word tells you which of its two forms it takes. Yin and Yang (음양, 陰陽, eumyang) are the oldest idea in the system: everything has an outward, active side and an inward, receptive side.
Two forms of the same element
Yang (陽) is the large, obvious, outward version of an element. Yin (陰) is the small, refined, inward version. Neither is stronger or better. Traditional Saju teaches them through images:
| Element | Yang form (陽) | Yin form (陰) |
|---|---|---|
| 🌳 Wood | 甲 Gap: the tall tree | 乙 Eul: the climbing vine |
| 🔥 Fire | 丙 Byeong: the sun | 丁 Jeong: the candle flame |
| ⛰️ Earth | 戊 Mu: the mountain | 己 Gi: the garden soil |
| ⚔️ Metal | 庚 Gyeong: the raw iron | 辛 Sin: the polished jewel |
| 🌊 Water | 壬 Im: the ocean | 癸 Gye: the morning rain |
The sun and a candle are both fire. The sun lights everything without choosing; a candle lights one room and draws people close. That is the difference between a Yang Fire and a Yin Fire day master in one picture.
How it shows up in a reading
- Yang day masters are described as direct and visible. Their energy is on the surface, and they tend to act first.
- Yin day masters are described as subtle and precise. Their energy is held inside, and they tend to observe first. Yin is not weakness: a vine outlasts a storm that snaps a tree.
Yin and Yang in compatibility
The five classic stem pairs in gunghap always join one Yang stem with one Yin stem, such as Yang Wood with Yin Earth. The idea is that opposite polarities lock together, which is why those pairs earn the highest “core element” score on this site.
Which are you?
Your polarity comes from your day master, the stem of your day pillar. Enter your birthday on the home page and the result shows it, for example “Yin Water”. The day master guide describes all ten types.
Saju is a cultural tradition, and this site treats it as entertainment. There is no scientific evidence that a birth chart determines personality or predicts the future.