Yang Wood 甲
Jia · Great Tree — Grows straight up and never swerves
In BaZi, the heavenly stem of your day pillar is your core element — what BaZi books call the day master. Yang Wood (Jia) is one of the ten: the Yang version of Wood. Traditional BaZi texts treat it as the part of the chart that stands for you, and read the other pillars in relation to it.
What does it mean to be a Yang Wood day master?
Great Tree — a tree that only grows one way
Your core element is Yang Wood, which the classical texts compare to a standing tree. This kind of wood has one direction: up. It doesn't wind, doesn't detour, and doesn't change its mind halfway.
People with this element tend to be remembered as "reliable" more than "flexible." You do what you say you will, hold your standards where you set them, and whenever you join a group you often become the pillar others lean on without you ever offering. The role comes to you because people can tell you don't fall over easily.
What to watch for is flexibility. A great tree isn't stronger than a vine in every situation. In a strong wind the vine bends and survives, while the tree that won't bow is the one that snaps. The place people like you hurt most is rarely losing; it is holding on to something that should have been let go, for too long.
The other thing the classical texts warn about is carrying everything alone. Because you are the pillar, people around you assume you need nothing, when in fact you get tired too. Saying plainly that you can't take any more doesn't make you a worse pillar. It only lets people know that this one is alive.
In everyday life, the Great Tree image shows up as a person who picks a direction and keeps walking it. Yang Wood types tend to make plans that run for years, keep close friends for decades, and return to a project after a setback rather than starting over. Where the Vine reaches its goal by going around, this type usually prefers the straight route, even when it is the longer climb.
The common misreading is that Yang Wood is stubborn for the sake of it. More often the firmness comes from having thought a thing through early and seeing no reason to reopen the question every week. People with this core element do change course, just slowly and on their own evidence rather than under pressure. Another misreading: because they rarely ask for help, others assume they have plenty in reserve. They usually have less slack than they let anyone see.
Yang Wood strengths and blind spots at work and with people
Strengths
- Keeps long commitments: Follows through on plans that take months or years, and is often still working on them after others have drifted off.
- Sets a clear standard: Colleagues and family usually know where a Yang Wood person stands, which makes them easy to trust with responsibility.
- Shelters the group: Tends to stand up for a junior colleague or a younger sibling without being asked, and people feel safer with them nearby.
Blind spots
- Slow to change course: The same persistence can keep a plan running past its useful life. Setting a fixed date to review a commitment helps more than willpower does.
- Unspoken expectations: Their own standards feel so obvious to them that they may expect others to meet them without ever stating them aloud.
- Carries too much alone: Giving shelter to everyone can leave none for themselves. Naming a limit early tends to go better than quietly reaching it.
At work, Yang Wood people tend to do best where effort compounds over time: building a team, a craft, a long project or an institution. They are often handed the hardest piece of a job because everyone trusts it to get finished. In relationships they show care through reliability more than words, by turning up, fixing what is broken and remembering the plan. Partners and friends sometimes want more spoken warmth than they receive, and a little of it goes a long way.
What supports a Yang Wood day master?
- If your Wood is light in your chart: what helps is Water, the element that feeds Wood, and more Wood beside it.
- If it is strong: what helps is an outlet: Fire (what Wood feeds), Earth (what Wood restrains) or Metal (what restrains Wood), depending on where the extra strength comes from.
- If it is balanced: what helps is whichever elements your chart has least of, so that all five stay present.
A light Great Tree draws on Water in the form of study, quiet time and a patient teacher, and on more Wood in the form of peers chasing the same goal. A strong one needs somewhere to send its growth. Fire turns it into expression, such as teaching or presenting. Earth gives it practical ground to tend, like a household or a hands-on build. Metal works like pruning, through deadlines, firm feedback and structure. Which side applies depends on the whole chart, and the free calculator on the home page names it for any birth date.
How Yang Wood relates to the other nine types
- Yin Wood — same element as Wood
- Yang Fire — Wood feeds it
- Yin Fire — Wood feeds it
- Yang Earth — Wood restrains it
- Yin Earth — Wood restrains it
- Yang Metal — restrains Wood
- Yin Metal — restrains Wood
- Yang Water — feeds Wood
- Yin Water — feeds Wood
Classical pairing: Yang Wood (Jia) and Yin Earth (Ji) combine into Earth. The free compatibility score counts this as one signal among several; the rest come from the other pillars of both charts.
Water people tend to steady Yang Wood, as if their company refills what it has spent. With Fire types it gives freely, which is warm but tiring. Earth is the element this tree restrains, so around Earth people it may slip into directing them. Metal restrains Wood, and the direct feedback of Metal types can feel sharp even when useful. The classical pairing partner is Yin Earth (Ji), and together the two combine into Earth. The free compatibility score weighs two complete charts across five kinds of signal, not just the two core elements.
Why birth month matters for Yang Wood
- Peak season: Tiger (about 4 Feb – 5 Mar), Rabbit (about 6 Mar – 4 Apr)
- Supportive season: Pig (about 7 Nov – 6 Dec), Rat (about 7 Dec – 5 Jan)
- Resting season: Snake (about 6 May – 5 Jun), Horse (about 6 Jun – 6 Jul)
- Constrained season: Dragon (about 5 Apr – 5 May), Goat (about 7 Jul – 7 Aug), Dog (about 8 Oct – 6 Nov), Ox (about 6 Jan – 3 Feb)
- Fading season: Monkey (about 8 Aug – 7 Sep), Rooster (about 8 Sep – 7 Oct)
Months here are the Chinese solar months, which start at a solar term rather than on the 1st, and are the same in both hemispheres. When the calculator judges whether a core element is strong or light, the birth month carries 40% of the weight.
For someone born in the Tiger month (about 4 Feb to 5 Mar) or the Rabbit month that follows, Yang Wood is at its peak and the traits read loud and clear: firm, self-directed, slow to bend. The Pig and Rat months support it. In the Monkey and Rooster months the element is fading, so the same person may seem more cautious, picking battles carefully and leaning on allies. Snake and Horse are resting months; Dragon, Goat, Dog and Ox constrain it. The full report gives each of the twelve birth months its own written section.
Yang Wood vs Yin Wood
Both are Wood, but they grow differently. The Great Tree builds height through one trunk, and the Vine spreads through many small attachments. Yang Wood tends to set its own direction and expect the surroundings to adjust, while Yin Wood reads the surroundings and adjusts its path. The tree's pace is slow and easy to see; the vine's is quick and often unnoticed until it has covered a wall. Neither is the stronger form, and each can learn from the other's approach.
Yang Wood: common questions
Is Yang Wood a stubborn day master?
It can look that way. Yang Wood tends to settle a question early and hold the answer, which reads as stubborn to people who like open options. In practice it updates given solid reasons and time, and resists mainly when pushed. The better question is whether a commitment still earns that loyalty.
What careers suit a Yang Wood day master?
Work that rewards persistence and long horizons tends to fit: building an organisation, long-term teaching, engineering, law, architecture, or any craft that deepens with practice. Roles where this type can protect or develop other people also suit it. Very short projects that keep shifting direction tend to frustrate it. Other parts of the chart change the picture, and the full report covers this under strengths and career.
Who gets along with a Yang Wood day master?
No type has a single right partner. As tendencies only, Yang Wood often feels supported by Water types, energised but spent by Fire types, and tested by Metal types. Its classical pairing is with Yin Earth (Ji), which combines into Earth. The free score on the home page looks at both people's entire charts and explains its reasons.
Is this your type?
Your type comes from the day pillar of your BaZi chart, which depends on your birth date. Enter it to see yours for free, with your four pillars, five-element balance and a compatibility score; the full report ($9 USD, one time) covers strengths, work style, money habits and ten-year cycles.
A personality and strengths framework for self-reflection and entertainment, not a prediction of future events.