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Day Master

甲 Jia: the Yang Wood Day Master

Upright, principled, and growth-minded, like a tree holding its line.

By the Daoly team · Updated November 2026

What Yang Wood is like in BaZi

甲 is imagined as a large tree: straight, slow to bend, and always growing upward. Jia charts are often described as direct and purposeful, with an instinct to build something lasting.

Common strengths

  • Long-range direction
  • Integrity and steadiness
  • Willingness to take the lead

Common blind spots

  • Rigidity when plans need to change
  • Treating advice as interference
  • Taking on too much structure alone

What this Day Master tends to need

Traditional readings often look for Water to nourish, Fire to warm and express, and Metal to shape the tree. Which matters most depends on season and strength.

A Day Master's needs depend on season and on the rest of the chart, so two people with the same Day Master can need different things.

Key relationships

Jia combines with 己 Ji (Yin Earth). Its output is Fire, its wealth is Earth, its pressure comes from Metal, and its support comes from Water.

See how these relationships become roles in the Ten Gods guide.

Frequently asked questions

What does 甲 Jia mean in BaZi?

甲 Jia is the Yang Wood Heavenly Stem, traditionally pictured as the tall tree. Upright, principled, and growth-minded, like a tree holding its line.

How do I know if I am a Yang Wood Day Master?

Calculate your chart from your birth details. If the top character of your Day Pillar is 甲, your Day Master is Jia, Yang Wood.

Daoly presents BaZi and the I Ching as cultural traditions and tools for self-reflection. Nothing here is a prediction or medical, legal, financial, or psychological advice.