day master in saju
The Day Master is the Heavenly Stem of your Day Pillar. In Korean Saju, it represents the person whose chart is being read.
The Day Master is the chart's anchor
In the full Sajusystem, your birth year, month, day, and hour create four pillars. The Day Pillar's upper character is called the Day Master, or il-gan. It answers the basic question: what element and polarity is the self in this chart?
A Day Master should not be treated like a sun sign. Two people can share the same Day Master but have very different readings because month season, surrounding elements, Ten Gods, and luck cycles change how that Day Master functions.
The ten Day Masters
| Day Master | Korean / Hanja | Image | Starting signal |
|---|---|---|---|
| Yang Wood | 갑 / 甲 | Tall tree | Direct, principled, growth-minded |
| Yin Wood | 을 / 乙 | Vine or flower | Flexible, diplomatic, persistent |
| Yang Fire | 병 / 丙 | Sun | Visible, warm, expressive |
| Yin Fire | 정 / 丁 | Candle | Focused, perceptive, quietly intense |
| Yang Earth | 무 / 戊 | Mountain | Steady, protective, hard to move |
| Yin Earth | 기 / 己 | Garden soil | Nurturing, practical, adaptive |
| Yang Metal | 경 / 庚 | Ore or blade | Decisive, disciplined, resilient |
| Yin Metal | 신 / 辛 | Jewelry | Precise, refined, value-aware |
| Yang Water | 임 / 壬 | Ocean | Expansive, strategic, restless |
| Yin Water | 계 / 癸 | Rain or mist | Intuitive, observant, subtle |
How readers use the Day Master
- Identify the Day Master from the Day Pillar's Heavenly Stem.
- Check the birth month season to estimate whether the Day Master is naturally supported or pressured.
- Read the other stems and branches as relationships to the Day Master, which creates the Ten Gods framework.
- Layer Daewoon and yearly cycles as temporary weather around the fixed chart, not as fixed outcomes.
Worked example: Xin Day Master
Take this fictional, calculated example: 庚午 / 壬午 / 辛亥 / 甲午. The Day Pillar is 辛亥, so its upper character, 辛, identifies the Day Master as Xin, or Yin Metal. The other pillars still matter; this one character is the chart's reference point, not a complete personality description.
A quick inventory of the visible characters in this example gives Wood 1, Fire 3, Earth 0, Metal 2, and Water 2. Those are counts of what is visibly written in the four pillars. They are not a strength score and they do not prove that someone is “more fiery” or “less grounded.” A fuller reading would also consider the month season, relationships among characters, hidden components, and timing.