Journal · 記
Writing on the four pillars
What the system claims, where the calculation is exact and where it is approximate, and what a chart can honestly say about time.
Foundations
What the four pillars are, and what each part of a chart actually claims.
Heavenly Stems and Earthly Branches: Two Lists That Aren't Alike
Ten stems and twelve branches are usually introduced as two lists of the same kind. They aren't. One is single and shows what it is; the other holds several things inside it and shows only the outermost.
·8 min
The Sexagenary Cycle: Why 60 and Not 120
Ten stems and twelve branches should give 120 pairs. They give 60, because half the combinations are forbidden — and the rule that forbids them is the same one that decides what every character in your chart means.
·8 min
Saju and BaZi: The Same System, Two Names
Saju is Korean, BaZi is Chinese, and they are the same eight characters computed the same way. Where they differ is not the method but the vocabulary around it — and one boundary convention that genuinely diverges.
·7 min
The Five Elements Are Not Elements: 五行 as Phases
Wu Xing is usually translated as the Five Elements, which makes Western readers think of Greek substances. It isn't a list of what things are made of — it's the shape of a cycle, and the mistranslation causes real errors.
·8 min
History
Where the system came from, who shaped it, and what changed on the way.
A Short History of Chinese Metaphysics: What Can Actually Be Dated
Most histories of this subject open with Fu Xi and the trigrams. This one starts where the evidence starts — and works forward through what survives, in the order it survives.
·9 min
Xu Ziping: The Method That Outlived Its Man
Every BaZi site credits Xu Ziping with inventing the day-master system. The method is real and traceable. The man is barely documented, and the book attributed to him was compiled centuries after he supposedly died.
·9 min
How BaZi Traveled: Four Names, One Calculation
China, Korea, Japan and Vietnam all run the same eight characters from the same calendar. What differs is where each country put the practice — and in Japan, even the name is a local invention.
·8 min
Saju in Korea: Four Hundred Years as a State Examination Subject
In Joseon Korea, reading a birth chart was a civil service qualification. There was a curriculum, a graded examination, and a government bureau that employed the people who passed — for roughly four centuries.
·9 min
Reading Your Chart
Working through a real chart, one judgement at a time.
The Yin Earth Day Master (己): The Field in Your Chart
己, yin Earth, is the field of BaZi, and it reads as strong more often than weak. What 24,112 charts show about its strength and its needs, what the classics say, and the six 己 day pillars.
·6 min
The Yang Fire Day Master (丙): The Sun in Your Chart
丙, yang Fire, is the sun of BaZi, and it reads as weak more often than strong. What 24,112 charts show about its strength and its needs, what the classics say, and the six 丙 day pillars.
·6 min
Hidden Stems: What the Branches Are Holding
A chart has eight visible characters and about fifteen actual ones. The twelve branches each hold two or three stems inside them, and most of what a reading works from is in there rather than on the surface.
·8 min
The Ten Gods, Part 3: Officer — Structure and Seven Killings
正官 and 七殺 are the same relation split by polarity, and the tradition gave one of them a name meaning killings. Understanding why closes the Ten Gods.
·8 min
The Ten Gods, Part 2: Output and Wealth — What the Day Master Spends
Output and Wealth are the two relations where energy leaves the day master — and unlike Resource and Peer, they run in sequence. You produce, and what you produce is what earns.
·8 min
The Ten Gods, Part 1: Resource and Peer — The Two That Add
The Ten Gods are usually taught as ten personality types, which makes them look arbitrary. They aren't ten things — they're five relations split by polarity, and only two of the five give the day master anything.
·8 min
Strong or Weak: What Day Master Strength Means in BaZi
A strong day master is not a lucky one. What 신강 and 신약 actually measure, the three tests that decide it, and why getting this backwards inverts every other reading in the chart.
·8 min
Your Day Master: The Character the Chart Is Written Around
Eight characters, and only one of them is you. What the day master is, why the tradition moved it from the year to the day, and what it decides in a chart.
·8 min
Accuracy
Where the calculation is exact, where it is approximate, and why that matters.
Why Your Birth Hour Matters More Than Its Weight
The hour pillar feeds only the two lightest factors in the strength verdict. Remove it anyway, and about one chart in five reads differently — some of them in the opposite direction.
·8 min
Solar Terms Are Moments, Not Days
The month pillar turns when the sun reaches a specific longitude — at an hour and a minute, not on a date. Two common errors follow from treating that as a calendar, and I shipped one of them myself.
·9 min
True Solar Time: Why Your Birth Certificate Doesn't Say When You Were Born
Clock time is a legal convention and the sun ignores it. Correcting for longitude is half the problem — the other half is that the law itself keeps changing, and most calculators handle neither.
·9 min
Why Free BaZi Calculators Disagree
Put one birth into three BaZi sites and you can get three charts. Some of that is error and some of it is an old argument between schools — and telling them apart is the useful skill.
·9 min
East and West
BaZi and Saju beside the traditions a Western reader already knows.
Fate or Tendency? What These Systems Actually Claim
Both traditions have a hard answer and a soft one: a birth as a sentence, or as a lean. Who argued which, what a chart can actually support, and where this site stands.
·9 min
Why BaZi Has No Planets
Western astrology reads the sky. BaZi reads a calendar, and the only celestial body in it is the sun. That isn't an omission — the tradition had planetary astrology and built this instead.
·9 min
Sun Signs and Day Masters — Rough Equivalents?
The day master plays the sun sign's role in BaZi, but it's built from a count of days, not the sun. The part of the chart that really tracks the sun is read as weather, not character.
·9 min
BaZi vs Western Astrology: What Each System Actually Measures
Which one is more accurate is the wrong question, because the two systems are not measuring the same thing. One reads the sky. The other reads a calendar — and the difference runs all the way down.
·8 min
Timing
大運, 歲運 and the only mechanisms in the system that speak about when.
2027 Chinese Zodiac: The Year of the Fire Goat (丁未) in BaZi
2027 is 丁未, the Fire Goat, or Fire Sheep. When the year really begins, what it brings to each day master, the July afternoon when a whole chart turns 丁未, and the old red-goat superstition.
·6 min
What BaZi Cannot Tell You
A BaZi chart is shared by tens of thousands of people born in the same two hours. What that rules out, what happened when charts were put to the test, and where they do change lives.
·9 min
Annual Fortune (歲運): What a Fire Horse Year Actually Means
2026 is a 丙午 year, the Fire Horse, the year Japanese families avoided in 1966. What a year pillar means in BaZi, where it really begins, and why the same year reads differently for every chart.
·6 min
Luck Pillars (大運): The Ten-Year Seasons
A chart never changes. Its luck pillars do: the calendar continued past your birth month, one month for every ten years. How they're built, why they need your birth sex, and how a decade is read.
·7 min
Practical
What a chart asks for in an ordinary week.
Chinese Zodiac Compatibility: What BaZi Actually Compares
The animal compatibility chart is built from real BaZi relations, but it compares one character of each person's eight. Where the chart comes from, and what a full reading of two charts weighs instead.
·7 min
Common Misconceptions About BaZi
Twelve things people often believe about BaZi, from zodiac animals and the lunar calendar to the Ten Gods and clashes, and what a chart actually says about each.
·10 min
Reading a Chart Someone Else Calculated for You
A chart from an app, a reader or a relative: how to find the day master, check what the chart was cast from, and tell the eight characters apart from the labels added around them.
·5 min
Do Twins Have the Same BaZi Chart?
Usually, yes: twins born minutes apart share all eight characters. The four edges that can split them, what practitioners do with twins who share a chart, and what twin research says about it.
·6 min
How to Find Your Birth Time
Where a birth time is written down, country by country, and how to read what you find: twelve-hour clocks, rounded times, summer time, and how close to an hour's edge the minute starts to matter.
·7 min