The Yin Wood Pig Day Pillar — 乙亥 Yi Hai (을해)
In Korean saju, your day pillar is made of two symbols from your birth date that work together like a picture. This page looks at the Yin Wood Pig Day Pillar, known as 乙亥 (Yi Hai) or 을해 in Korean, also called the Blue Pig. About 1 in every 60 people share this exact day pillar.
What this pillar is like
A day pillar has two parts: a stem on top and a branch underneath, a bit like a rider sitting on an animal. Here the stem is Yin Wood, often pictured as a vine or a trailing plant rather than a tall tree. The branch is the Pig, which belongs to the Water element.
Personality and inner world
The vine image fits people with this pillar well. Vines do not stand stiff and straight; they bend around whatever is near them, which shows up as flexibility and an easy ability to adapt to new people and situations. This often comes with a warm, friendly way of connecting with others, like a natural networker who can talk to many different kinds of people.
Is this your Day Master?
Enter your birthday and meet your character among the Twenty — calculated with true solar time at your birthplace.
In love and close relationships
The branch under the day stem is sometimes called the spouse palace, because in saju this part of the chart is traditionally linked to close partnerships. For this pillar, the Pig branch carries something called Direct Resource, a quality linked to learning, kindness, patience and support.
Work, money style and growth
The same Direct Resource quality that shows up in relationships also connects to mentors, teachers, credentials and steady learning in work life. People with this pillar may feel most comfortable in settings where they can keep studying, picking up new skills, or working under someone experienced before striking out alone.
Tips for people born on this pillar
Because flexibility is a real strength here, it can help to pair it with a few steady habits or routines, so that adaptability does not turn into drifting without direction. Using the detail-sensitive side on purpose, such as double-checking small things in important tasks, can turn a quiet trait into a useful tool.
Questions people ask
What does Yin Wood Pig Day Pillar (乙亥 Yi Hai, 을해) mean?
It is the day pillar formed by the Yin Wood stem sitting on the Pig branch, the 12th pairing in the 60-pillar cycle, also nicknamed the Blue Pig. It points to tendencies like flexibility, warmth, and a mix of restlessness with a calm inner side, not to a fixed personality or fate.
Is 乙亥 a good or lucky day pillar?
Saju describes tendencies rather than good or bad luck. This pairing is seen as a supported one, since the Water branch feeds the Wood stem, and it carries learning and kindness qualities, but it has no special extra marker for unusual fortune.
What are the compatibility basics for this day pillar?
Saju compatibility looks at how two people's stems and branches interact, especially elements and the spouse palace area, but this page only describes personal tendencies and does not give specific match predictions for named partners.
How can I find my own day pillar or Day Master?
You can find it for free on this site by entering your birth date, time and place. The site converts your birth time to local solar time at your birthplace to work out your exact day pillar.
When does the Yin Wood Pig day come around?
Day pillars repeat every 60 days. The next Yin Wood Pig days are: Wed, Oct 28, 2026 · Sun, Dec 27, 2026 · Thu, Feb 25, 2027 · Mon, Apr 26, 2027 · Fri, Jun 25, 2027 · Tue, Aug 24, 2027. People born on this pillar often notice these days feel familiar.
Pillars that pair and contrast
Natural partner: 庚寅 Yang Metal Tiger — its stem combines with 乙 and its branch forms a six-harmony pair with 亥, a classic sign of easy cooperation.
Opposite pillar: 辛巳 Yin Metal Snake — stem and branch both clash with 乙亥. Lively and stretching rather than bad; give each other room.
Real compatibility reads both full charts — check two birthdays.
Neighbouring pillars
Read your whole chart
Your day pillar is one of eight characters. See all four pillars, your five elements and your 2027 — the first chapters are free.