I Ching · changing lines
The moving parts,
A reading with changing lines is not a better reading than one without. The changing lines simply mark the parts of the situation that are already in motion — the ones that will flip in the relating hexagram. This page explains exactly how that calculation works, what the three possible shapes are (no changing lines, one or two, or many), and how we present the result in Turning Lines.
The primary hexagram
Your primary hexagram is the pattern you are standing in right now. It is the bottom-to-top combination of six yin/yang lines produced by your six coin tosses (or the six values you entered). Nothing here is moving yet — the primary is the still photograph of the moment you tossed the coins.
What makes a line "changing"
Two of the four possible line values are changing: 6 (old yin) and 9 (old yang). The other two — 7 (young yang) and 8 (young yin) — are stable. A reading can have anywhere from zero to six changing lines. The changing lines are the parts of the situation that are already in motion; the stable lines are the parts you can count on to hold.
How the relating hexagram is calculated
Every changing line flips its yin/yang polarity. The relating hexagram is the bottom-to-top pattern you get after every 6 has become yang and every 9 has become yin. If your reading has no changing lines, there is no relating hexagram — the primary stands alone. If your reading has changing lines, the relating hexagram is shown directly below the primary in the workbench, and the specific lines that moved are listed by number.
Primary hexagram on the left; relating hexagram on the right. The two changing lines (line 1 and line 3) are marked with a cinnabar dot. After flipping, line 1 becomes yang and line 3 becomes yin.
The primary hexagram
How the relating hexagram is calculated
Primary hexagram on the left; relating hexagram on the right. The two changing lines (line 1 and line 3) are marked with a cinnabar dot. After flipping, line 1 becomes yang and line 3 becomes yin.
A reading with no changing lines
Some readings produce six stable values. That is not a weaker reading. It says the pattern you are standing in is intact: the situation is not yet moving in the way the coins can mark. Stay with the primary; come back later and cast again if the situation shifts.
A reading with many changing lines
Some readings produce four, five, or even six changing lines. That usually means the situation is genuinely in flux, and the relating hexagram will look very different from the primary. Take it as a sign that the old shape is already letting go. We show the relating hexagram below the primary and label the moved lines explicitly so you can see which parts are shifting.
On reading multiple changing lines
Different teachers handle multiple changing lines differently — some read them in order, some read whichever line lands on the most significant position, some read them as a whole pattern. We do not pick a single rule, because no single rule is universal. We surface every moving line, list it by number, and present the relating hexagram. The reading then sits beside all of the moving lines as context — not as a verdict about which one is "correct."
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