Purity & Mixture — Is the Useful God Clear?

In Lesson 9 we asked whether a Pattern forms, in Lesson 10 how high it stands, and in Lesson 11 whether it can breathe in its season. This chapter asks a fourth question, and it is the most human of the four: do the two gods the chart actually uses get along with each other? A chart can form cleanly, stand high and meet its climate — and still have its two working gods pulling in opposite directions. The classic calls that mixture (雜), and its opposite purity (純).

The classic's chapter: two gods, one job

The chapter opens with the whole doctrine in one sentence: “Once the Useful God changes, purity and mixture appear inside the change. Pure is fortunate; mixed is unfortunate.” Then it defines both words with examples, and the examples are the whole method. Pure is when two gods are used together and each gains from the other. Xin Metal born in Yin month, with Jia Wood and Bing Fire both revealed in the stems: Wealth feeds the Officer, and the two agree. Wu Earth born in Shen month, with Geng Metal and Ren Water both revealed: Expression feeds Wealth, and the two agree. Gui Water born in Wei month, with Yi Wood and Ji Earth both revealed: Expression controls the Seven Killings — the two oppose each other, but the opposition is exactly what the chart needs, so that too is agreement. Mixed is the mirror image: two gods used together that do not consult each other. Ren Water born in Wei month, with Ji Earth and Yi Wood both revealed: the Officer and the Wounding Officer attack each other, and neither yields. Jia Wood born in Chen month, with Wu Earth and Ren Water both revealed: Wealth attacks Resource, and the two do not consult each other. In both mixed cases, a good god is being attacked — the Officer by the Wounding Officer, the Resource by Wealth.

The commentator Xu adds three notes that turn the definitions into a working method. First, purity and mixture are the same thing the Di Tian Sui calls clear and muddy: “A single clear current running to the bottom has spirit; clear it again and again, and it is bound to be clear and noble. Clarity inside mud is the rarest talent.” Second, agreement must fit what the Day Master needs. Wealth feeding Officer is only agreement if the Day Master is strong enough to carry Officer and Wealth — Xin Metal must have roots before its Wealth and Officer can be called pure. The same test applies to every pair, wherever the two stems appear: the month branch's hidden stems revealed, or stems revealed in the year, day or hour. Third, there are exceptions. The Officer and the Wounding Officer are not supposed to be used together, and neither are Wealth and Resource — but if one of the pair only hides inside a branch and never reaches a stem, it has no strength to fight. Ren Water born in Wei month, with Ji Earth revealed and Yi Wood only hidden: the hidden Wounding Officer cannot attack the Officer. And even when both are revealed and fighting, another god can rescue the combination — by combining one of them away, or by controlling it. Without a rescue, the chart is unfortunate; with one, it is not.

The classic's own two charts

Yang Zengxin's chart — Jia Zi, Ding Mao, Ji Hai, Wu Chen. Hai and Mao join, Jia Wood the Officer shows in the year stem, Zi Water the Wealth feeds the Officer, the Officer feeds Ding Fire the Resource, and the Resource feeds the Day Master: Wealth, Officer and Resource feed each other in one unbroken chain, and the chart is pure. The commentator adds one regret: there is no Metal in the hour, so the circulation stops at the Day Master and cannot be passed on. Yang Hongzhi's chart — Gui Wei, Jia Zi, Bing Xu, Xin Mao. At first glance everything disagrees and the chart looks mixed: the Officer Gui Water is revealed in the year stem, but its root, Zi Water, is squeezed between Xu and Wei, and Gui itself is controlled by the Wei Earth it sits on; Bing Fire combines with Xin Metal, so the Day Master's feeling lies with Wealth, not with the Officer. Look closer, and the combination is the rescue: Bing and Xin combine and turn to Water, so the Wealth is combined away and cannot attack the Resource; the Resource can then control Expression and protect the Officer. Muddy, with clarity inside it — and the commentator says the whole verdict rests on Jia Wood, the Resource revealed in the month stem, which he calls the rescuing god.

The checker: do the working gods agree?

The checker looks at every pair of gods that are both revealed in the stems — the Day Master's peers are left out, because the chapter's pairs are always between two working gods. Each pair is judged by its element relation. Flowing pairs are agreement: Wealth feeding Officer, Officer feeding Resource, Killings feeding Resource, Expression feeding Wealth. Controlling pairs split two ways: Expression controlling the Seven Killings is agreement, because the control is exactly what the chart needs; the Wounding Officer attacking the Officer, Wealth attacking Resource, and the Owl seizing Expression are disagreement. One flowing pair is the exception: Wealth feeding the Seven Killings is not agreement but Wealth siding with the Killings — unless Expression is already controlling the Killings in the same chart, in which case the harm is reduced and the pair is left for a human eye. A god that only hides inside a branch is noted as too weak to fight, never counted as mixture — that is the commentator's exception, coded as written. And a disagreeing pair can still be rescued two ways: the attacking stem is combined away by a stem combination, or another revealed stem controls the attacker. The rescuing god must itself be clean — a god that is party to another disagreeing pair cannot rescue. A combination only counts as carrying the attacker away when the combination's element differs from the attacker's own element: Bing and Xin combine into Water, so Xin Metal is gone; but Jia and Ji combine into Earth, so Ji Earth keeps its nature and is not carried away — which is why the 1949 chart below stays mixed. Finally, agreement must fit the Day Master: a chart with no roots and no Resource or peers revealed, whose agreeing pairs are all draining the Day Master, is marked undecided rather than called pure.

Four charts, worked through

Mao Zedong, 26 December 1893, Chen hour — Gui Si, Jia Zi, Ding You, Jia Chen. Ding Fire born in Zi: the revealed pair is Gui Water the Seven Killings feeding Jia Wood the Resource — Killings feeding Resource, agreement. The chart is pure on this layer. Read with the other layers: the Pattern forms with a flaw (Lesson 9), stands second-highest (Lesson 10), and meets its climate (Lesson 11) — four readings, each saying something different, none replacing the others.

1 October 1949, 3 p.m. — Ji Chou, Gui You, Jia Zi, Ren Shen. Jia Wood born in You: the revealed pairs are Ji Earth the Wealth attacking Gui Water the Resource, and Ji Earth attacking Ren Water the Resource — Wealth attacking Resource twice over. Jia Wood combines with Ji Earth, but the combination turns to Earth, Ji Earth's own element, so the Wealth is not carried away and there is no rescue. The chart is mixed on this layer — and the three earlier layers agree with it: the Pattern forms with a flaw, stands low, and only half meets its climate. Four layers, one direction.

The classic's Yang Zengxin — Jia Zi, Ding Mao, Ji Hai, Wu Chen. The Officer feeds the Resource, and the Wealth hidden in Zi feeds the Officer from inside its branch. Pure. The classic's Yang Hongzhi — Gui Wei, Jia Zi, Bing Xu, Xin Mao. Wealth attacks Resource, but Bing Fire combines Xin Metal away into Water, and Jia Wood the Resource stands revealed. Muddy, with clarity inside it — the chapter's own proof that mixture is not a sentence: it is a question, and the rescue is the answer.

What this means in a reading

Purity is the question of whether a chart's working gods are pulling together. When they are, the chart's energy runs in one direction and the reading can trust it; when they fight, the reading has to ask what the fight costs, and whether anything in the chart — a combination, a controlling god — settles it. The most useful verdict is often the middle one: muddy, with clarity inside. That is the classic's real lesson here — not that mixture is doom, but that a chart deserves to be looked at twice, once for the fight and once for the rescue. The next classic on the desk is the chapter On How the Four Tombs Are Used — the months that hide three gods at once — and then the Patterns themselves, one by one.