If the plates set the stage and the Four Lessons name the players, the three transmissions in Da Liu Ren (大六壬 dà liù rén) are where the reading starts to move. The Three Transmissions (三传 sān chuán) are a sequence of three branches — 初传 (chū chuán, the Initial), 中传 (zhōng chuán, the Middle) and 末传 (mò chuán, the Final) — drawn out of the board as a small narrative. They are the dynamic core of the method, the part that turns a static picture into a story with a beginning, a turn and an ending.
Where Ba Zi (八字 bāzì) maps a whole life, Da Liu Ren answers a single question cast at a moment, and the Three Transmissions are how that question unfolds in time. This piece explains what the arc means and why it carries the weight of the reading.
Initial, Middle, Final: the three positions
The three transmissions sit in a fixed order. 初传 comes first, then 中传, then 末传. Each is a single Earthly Branch lifted from the board and stacked with the General riding it. Read together they form a line, and the line has direction — it always runs from the Initial through the Middle to the Final, never the other way.
Practitioners read that line in two common registers, and traditions differ on which they emphasise:
- Past → present → future. The Initial is where the matter comes from, the Middle is where it stands now, the Final is where it is heading.
- Cause → development → outcome. The Initial is the root or trigger, the Middle is how it grows and turns, the Final is how it settles.
These two readings are not rivals. The same three branches carry both a timeline and a chain of cause, and a working reading usually holds both at once: what set this in motion, where it is now, and how it wants to resolve.
八字 · Four Pillars
Start with your own chart. Plot your Ba Zi free — exact solar-term accuracy, in your browser. The birth chart is where every reading begins.
Where the transmissions come from
The Three Transmissions are not invented for the occasion — they are derived from the board by rule. The chain begins in the Four Lessons (四课 sì kè), which are built from the day’s stem and branch read against the Heaven Plate. Among those lessons the method looks for a controlling relationship — a 生克 (shēng kè, generating-and-controlling) tie where one party controls the other. That controlling lesson seeds the Initial Transmission.
From the Initial, the Middle and the Final follow by chaining through the plate relationships, so the three positions are linked, not independent. The full selection logic runs through the Nine Methods (九宗法 jiǔ zōng fǎ), applied in a strict priority order — the controlling method first, then tie-breakers for when several candidates compete, then special rules for boards where the ordinary approach fails. The finished pattern also earns a name, a 课体 (kè tǐ, course structure), that describes the whole shape of the reading.
The important point for a beginner: the arc is deterministic. Given a real day, hour and the aligned board, the three transmissions fall out by fixed derivation. A reading interprets that finished sequence; it does not improvise it. (Butcher Boy treats the plate and transmission generation as a computed engine, the same discipline the Ba Zi engine already follows — so this article explains the arc in principle, not a specific dated cast.)
Reading the arc, not a verdict
The reason the three transmissions matter so much is that Da Liu Ren is precise about when, and the arc is where that precision lives. A single lesson can tell you the shape of a matter; only the sequence tells you how it moves through time.
So the transmissions are read as a progression, not a single verdict. A favourable Final after a difficult Initial reads very differently from the reverse: trouble that resolves versus ease that sours. The classic mistake is to seize on one position — usually the Final, because it looks like “the answer” — and ignore the two that lead to it. The Initial tells you the origin, the Middle tells you the turn, the Final tells you the settling, and the meaning is in the whole line.
Each transmission is also weighed on its own terms: which General rides it, whether its element is strong or weak for the season, and how it relates to the day. A Final that is favourable but seasonally exhausted promises a thinner outcome than one that arrives strong. This is the same seasonal-strength logic that governs a Day Master in a birth chart — the state of an element colours what it can deliver.
Why the three transmissions are the dynamic heart
The plates and the Four Lessons are structure; the three transmissions are motion. Everything before them describes the situation as it stands. The transmissions are the only part of the board that explicitly carries a direction of travel — a from, a through and a toward. That is why practitioners call them the dynamic heart of a Liu Ren reading and why answering a question well means reading the arc as a sequence.
If you are coming to this from Ba Zi, the instinct transfers cleanly. In a birth chart you already read time as a sequence through the luck pillars (大运 dà yùn) — ten-year climates that unfold in order. The Three Transmissions do the same work at the scale of a single question: three steps instead of a lifetime of decades. For the fuller picture of how a board is assembled before the arc is drawn, start with the overview of what Da Liu Ren is.
Da Liu Ren is a computed engine we are still building. In the meantime, the same read-time-as-a-sequence instinct is already live in your own Four Pillars — plot your chart free with the Ba Zi calculator and see how the luck pillars trace their own arc across a life.