DAY PILLARS · SAJU
Day pillar 庚子 (Gyeongja): Yang Metal on the Rat
Gyeongja is a steel blade plunged into icy water in the dead of a winter night. Yang Metal entrusts itself to the Rat, a quick, cold water: a sharp intelligence that is tempered by the cold and grows keener still.
1. The image
In this image, Yang Metal stands above the Rat, the Yin Water branch of midwinter. Metal feeds water: the tradition reads bold expression here, thought that flows fast and clear. The Rat contains only one hidden element, 癸, a pure, cold water. Metal in icy water has a particular clarity, but it can also go cold. The nayin is Earth of the Wall (壁上土): the raw earth of a wall that shields the house from the wind.
2. Your birth element: Yang Metal
Yang Metal is raw ore or the axe: a dense, direct material that cuts. You may recognize yourself in this taste for clear-cut things and decisions you stand by. Your frankness saves everyone time. The flip side: cutting short where a gentler sentence would have done.
Read the portraits of the ten elements
3. What it rests on: the Rat
The Rat is a Water branch, the branch of midwinter, around December, when the nights are longest. It hides only one stem, 癸, Yin Water: a pure, concentrated seat. In this image, the base of the pillar is lively, discreet, turned toward listening and reflection.
Bold expression is the element the stem feeds, with the opposite polarity: words that burst out, a critical eye, an urge to do things differently. On this seat, you have wit, daring, a real sense of originality. The flip side: shaking up rules or people harder than you meant to. The lever: choose the moment and the tone.
4. In daily life
You may be someone who understands quickly and says so plainly: in a discussion, you spot the flaw in an argument before anyone else. You have a sense of humor, sometimes dry, and a keen sense of what rings false. People ask your opinion when they need to see clearly. The flip side: clear-sightedness can take a cold turn, and an accurate remark can chill the room. You can also think so fast that you forget to wait for others to catch up.
5. Up close, as a couple
The Rat in the spouse palace suggests a lively, nocturnal intimacy, made of long conversations and trading ideas. You may love a bond where you really talk, without pretense. The flip side is criticizing faster than you show tenderness, or staying in analysis mode when the other person is waiting for a gesture. In this image, a little warmth makes cold water easier to share.
6. The lever
Gyeongja’s lever: warm the water. Your clarity is precious, and it lands better when it comes with a little warmth. Before voicing a criticism, first name one thing that works, sincerely. This is not softening the truth, it is giving it a chance to be heard. In your recent exchanges, which accurate remark deserved a warm word before it?
7. The nayin: Earth of the Wall
壁上土, Earth of the Wall: the earth that forms the walls of a house. The image suggests structure, intimacy, what separates and protects at once. The tradition sees it as an earth that leans on a frame, and grows more solid when it is well supported.
8. Why this pillar isn’t the whole story
This pillar is only one part of your chart. Saju counts eight signs, spread across the year, month, day and hour of birth. Thousands of people share this same day pillar, since it comes back every 60 days. What changes everything is the rest: the year and month set the scene, the hour adds its nuance, and the balance of the elements draws a chart that is yours alone.
The next 庚子 days
The calendar of days moves forward continuously: here are the next dates when this pillar comes back, for information only.
Frequently asked questions
Does the cold of the Rat weigh on the Metal of Gyeongja (庚子)?
The Rat is the water of deep winter. For a Yang Metal that feeds it, the classics describe the “metal and water” configuration (金水傷官), clear-sighted but cold, which appreciates the warmth of Fire. So you look at whether Fire appears elsewhere in the chart, without drawing conclusions from the day pillar alone.
Why do people talk about the 11 p.m. rule?
In many Saju schools, the day doesn’t start at midnight but at 11 p.m., at the beginning of the hour of the Rat. If you were born between 11 p.m. and midnight, your day pillar may therefore be the next day’s. Other schools keep midnight. Local solar time can also shift this boundary.
Are two people with the same day pillar alike?
They share the same basic image, but not the same chart. The year, month and hour pillars change the balance of the elements and the way the day expresses itself. Two people with the same pillar can therefore have very different temperaments, each in their own way.