BaZi Patterns (格局): Reading the Chart's Structure
Patterns are the part of BaZi where the schools disagree most — there is no single authoritative verdict to hand you. A careful look at what 格局 is trying to do, standard versus special patterns, why this site's calculator deliberately gives no pattern label, and how to hold a contested method honestly.
By the time the question of patterns (格局) comes up, you are deep in Bazi. This is not a beginner's topic, and it should not be read as one. It sits on top of three things you need first: Day Master strength, the Ten Gods, and the favourable-element question. If those are not yet solid, patterns will read as arbitrary jargon. With them in place, 格局 becomes the natural next question: not just how strong the self is or which gods surround it, but what overall structure the chart is organized as.
A warning belongs at the very top, because it is the whole character of this topic: patterns are the part of Bazi where the schools disagree most, and there is no single authoritative verdict to hand you. This article describes what 格局 is and how it is reasoned about — not a definitive classification of your chart, which different teachers would genuinely classify differently.
What a "pattern" is trying to do
Everything up to now has read the chart as a balance — a self, and the forces supporting or pressuring it. A pattern reads the chart as a shape. The question shifts from "is the self strong or weak?" to "what is this chart fundamentally built around — what is its dominant configuration?"
The usual anchor for that question is the month branch (月令) — the Earthly Branch of the month pillar. The month branch is treated as the chart's centre of gravity, the season the whole chart is born into, and the Ten God emerging from it — through its hidden stems, relative to the Day Master, and especially the dominant or exposed one — is read as the chart's organizing principle. A chart whose month command yields the Direct Officer is reasoned about differently from one organized around the Eating God or the Indirect Wealth. The pattern is, roughly, the name for that organizing principle — the lens through which the rest of the chart gets read.
Standard patterns and special patterns
At the broadest level, patterns sort into two families, and the distinction matters because they obey opposite rules.
Standard patterns (正格) are charts that play by the ordinary balance rules. Most charts are read this way: you identify the dominant Ten God (usually from the month command), and the reading proceeds along the lines the strength and favourable-element articles described — support a weak self, drain or check a strong one. The pattern names which configuration dominates (a chart built around the Officer, the Resource, the Wealth, the Output, and so on), but the underlying logic is still balance.
Special patterns (變格 / 從格 / 專旺) are the exceptions — charts so lopsided that the normal balance rule is abandoned rather than applied. As the favourable-element article noted, a self with almost no support is sometimes read not as "weak and needing help" but as a following pattern (從格) that goes with the dominant force instead of resisting it; and a chart overwhelmingly of one element can be a dominant-qi pattern (專旺) that is best left to flow with that single element rather than balanced against it. These are precisely the charts where the normal reflex — weak gets fed, strong gets drained or restrained — can fail. The reading first asks whether the chart should follow its dominant configuration rather than force it back toward ordinary balance. They are a minority, and identifying them correctly is one of the harder judgment calls in the whole system.
Why the schools disagree — and why that is honest
Here is the part no responsible article can paper over. The conditions under which a pattern is considered established — especially the special patterns — vary substantially between schools and teachers. How pure a chart must be to count as a true 從格, whether a borderline chart is a standard pattern with an unusual emphasis or a special pattern outright, which Ten God a mixed month branch should be read as producing — these are genuinely contested, not settled facts with one right answer.
This is why this site's BaZi calculator does not hand you a pattern verdict. It computes the things that can be computed plainly — the four pillars, the Ten Gods, the Day Master strength, and a basic favourable-element tendency — and it stops there, deliberately. Its own notes say as much: a fuller reading also weighs methods like 調候, 格局, and 通關, "and can disagree" with the basic tendency. Pattern analysis is one of those fuller layers, and it is the kind of judgment a knowledgeable human reader makes and argues for — not a single output a calculator should pretend to settle. An article or a tool that gives you one confident 格局 label and no caveats is overselling a contested method.
How to hold patterns sensibly
So treat 格局 as a way of reasoning about a chart's structure, not as a verdict to be looked up. Used well, it is genuinely illuminating: knowing that a chart is organized around its Output gods, or that it might be a following pattern rather than a weak one, reframes everything downstream — what supports it, what burdens it, what it is built to do. Used badly, it becomes a single dramatic label ("you have a such-and-such pattern, therefore X will happen") that ignores both the disagreement underneath it and the rule that runs through this entire site: these structures are descriptive, not predictive. A pattern describes how a chart is shaped. It does not forecast events, and it is not a destiny.
The honest path is the layered one. Build your chart on the BaZi calculator; get comfortable with its Day Master strength, Ten Gods, and favourable elements first; and then approach patterns as the structural question that sits on top of all three — reasoned about carefully, held loosely, and never mistaken for a single authoritative answer that the tradition itself does not actually agree on.