What is saju?
The Korean Four Pillars of Destiny, explained in plain words.
The short answer
Saju, also called the Four Pillars of Destiny, turns the year, month, day and hour of your birth into four pillars of eight characters. The balance of the five elements in them (wood, fire, earth, metal and water) describes your temperament, your strengths and the ten-year cycles your luck moves through. K-MUDANG calculates your chart from your birth date, time and city, and Yong Hae-in explains what it means in plain words.
The four pillars and the eight characters
Your birth year, month, day and hour each become one pillar. Every pillar has two characters: a heavenly stem on top and an earthly branch below. Four pillars, eight characters. The top character of the day pillar is called the Day Master. It stands for you, and every other character is read by how it relates to it.
How is my Saju chart calculated?
The year and month pillars change at the solar terms, not on January 1. The Hour Pillar uses the birthplace, historical standard time, daylight saving and selected time correction. Longitude correction leaves out the equation of time. You can choose from 479 cities around the world.
Do I need my exact birth time?
No. Tap "Time unknown" and the reading uses six of the eight characters. The Hour Pillar changes every two hours, so if you know the time, enter the hour and minute.
What a reading looks at
A saju reading is not one sign. It is a chain of judgments, each built on the one before. These are the main ones:
- Position
- The same character means something different in the year, month, day or hour pillar, and as a stem or a branch. Call the month branch the year branch and the whole story changes.
- Ten Gods
- Whether a character is your wealth star or your authority star decides whether a line is about money or about work. One slip swaps them.
- Strong or weak
- Counting characters alone often gives the opposite answer. The birth month weighs the most, and every position has its own weight.
- Ten-year cycles
- Forward or backward (year polarity and gender), the age they turn (days to the next solar term), and which cycle you are in now. Get one wrong and the whole sequence slides.
From those judgments comes the Vital Element: the element your chart needs most. Next to it sit the Support Element, which helps it, and the Avoid Element, which works against it. Many parts of a reading, from the ten-year cycles to good dates and the talisman colour, are read against it.
Why people look at their chart
- When should I change jobs?
- Some years bring in the stars of work and position. Others do not. Start preparing so you are ready when that year comes.
- Why does love keep ending the same way?
- Your romance stars and your wealth and authority stars shape the kind of person you are drawn to. Once you see the pattern, you look at the next person differently.
- I earn money. Why does none of it stay?
- Your wealth and output stars set how money comes and goes. A strong Rival star makes large sums easy to lose. Close the leak first and the same income leaves more behind.
- What kind of work suits me?
- Your Day Master's element and chart structure point the direction. Often the answer is the setting, not the job title. Look first at the people, the pace and the place.
- Is saju even accurate?
- Two people born on the same day split apart if the hour differs. That is why we take your time to the minute and your birth city. You can check the calculated chart against any Saju calendar yourself.
How K-MUDANG reads your chart
Get the math wrong and nothing else matters. Birthplace longitude, the standard time and daylight saving in force at birth, and the selected time correction can change the hour or day pillar. Even at the same clock time, you have to check which conditions were applied. AI gets this kind of math wrong all the time, and a reading built on the wrong chart still reads smoothly. Nobody notices.
So we split the job in two. A calculation engine, built on the classical rules, works out your chart from your birth city, daylight saving and the solar terms. Yong Hae-in receives the finished chart and writes the reading. She cannot change your chart.
At K-MUDANG the engine makes every one of these calls. Every engine change is run through 23,040 charts in all three language versions to make sure not a single calculation has moved. We have also checked close to 2,000 charts directly against the Saju calendar most widely used in Korea, and the charts we compared line by line matched on the eight characters and on the twelve life stages, combinations, clashes, breaks, harms, resentments and void branches. All 2,424 solar terms from 1899 to 2100 were recalculated from astronomy down to the second. Yong Hae-in receives those values with their position names, reads them and cannot change them, and after each reading its dates and pillars are checked against the engine again. Schools choose the Vital Element differently, so there is no single answer. We judge strength and climate separately and show the reasoning on screen. If you have a reading from somewhere else, start by checking its position names and cycle ages against your chart here.
Questions
Is the Saju reading free?
Your chart, Today's Fortune, two months of good dates, the compatibility score and face reading are free. Yong Hae-in's full reading and follow-up questions use credits.
Do I need my exact birth time?
No. Tap "Time unknown" and the reading uses six of the eight characters. The Hour Pillar changes every two hours, so if you know the time, enter the hour and minute.
How is my Saju chart calculated?
The year and month pillars change at the solar terms, not on January 1. The Hour Pillar uses the birthplace, historical standard time, daylight saving and selected time correction. Longitude correction leaves out the equation of time. You can choose from 479 cities around the world.
What does a compatibility reading look at?
It sets two charts side by side: whether your elements support or strain each other, where your branches combine or clash, and whether each of you carries the element the other needs. Romance, Friend, Business and Family each get their own reading.
Who is Yong Hae-in?
She is the voice that writes your reading. The engine calculates your chart first, and she receives only the finished result. She cannot change your chart.