The Ten Day Masters of BaZi (日主)

Your Day Master (日主) is the stem of your Day Pillar — the character every other character of your chart is read against. Ten stems, five elements in Yang and Yin shades, ten ways of being at the center of a chart. Each has its own page here, built by the same deterministic engine that casts your chart: the calculation is transparent, and the reading is a cultural lens, not a verdict.

Start with the big picture

Read the full guide first: Your Day Master, then The Ten Heavenly Stems.

• Jia (甲, Yang Wood) 甲

  Yang Wood — the straight trunk. Upright, principled and growth-driven, Jia bends only deliberately and breaks before it bends.

• Yi (乙, Yin Wood) 乙

  Yin Wood — the vine and the flower. Flexible and socially graceful, Yi grows around obstacles rather than through them.

• Bing (丙, Yang Fire) 丙

  Yang Fire — the sun at noon. Warm, visible and generous, Bing lights up a room and others find their way by it.

• Ding (丁, Yin Fire) 丁

  Yin Fire — the lamp and the candle. Ding carries steady inner warmth, cares for what is close and endures the night quietly.

• Wu (戊, Yang Earth) 戊

  Yang Earth — the mountain and the embankment. Solid and reliable, Wu is slow to move and, once positioned, hard to shift.

• Ji (己, Yin Earth) 己

  Yin Earth — the field and the garden. Nurturing and adaptable, Ji quietly manages whatever it is given and makes it productive.

• Geng (庚, Yang Metal) 庚

  Yang Metal — the axe and the raw ore. Decisive and blunt, Geng is unafraid of conflict and values truth over comfort.

• Xin (辛, Yin Metal) 辛

  Yin Metal — the jewelry and the fine blade. Refined and perceptive, Xin cuts with elegance rather than force.

• Ren (壬, Yang Water) 壬

  Yang Water — the river and the ocean. Flowing and ambitious, Ren is hard to contain and carries a situation forward.

• Gui (癸, Yin Water) 癸

  Yin Water — the rain and the mist. Deep and intuitive, Gui nourishes people before they notice they were dry.