1. The Three Parts of a Changing Reading
A hexagram is a stack of six lines, each either solid or broken. The primary hexagram is the figure you cast. A changing line marks a position that switches from solid to broken or vice versa. After all marked lines change, the resulting figure is the relating hexagram, also called the changed or resulting hexagram.
Hilary Barrett's Introduction for Beginners distinguishes these layers and treats the relating figure as context rather than an inevitable future. Other commentaries emphasize development or direction. Keep the mechanical transformation separate from the interpretive meaning you give it.
2. What the Numbers 6, 7, 8, and 9 Mean
With the common three-coin method, assign one side 2 and the other 3 before beginning, then total each toss of all three coins. Different instructions may swap which side is called heads; keep your chosen convention consistent. The total determines both the line's present shape and whether it changes.
| Value | Type | Primary figure | Relating figure |
|---|---|---|---|
| 6 | Old yin | Broken | Changes to solid yang |
| 7 | Young yang | Solid | Remains solid yang |
| 8 | Young yin | Broken | Remains broken yin |
| 9 | Old yang | Solid | Changes to broken yin |
Yin means the broken line; yang means the solid line. “Old” marks a changing line, not an older person or a worse result. Only 6 and 9 change. The values 7 and 8 stay as they are.
A line value contains two pieces of information: its shape now and whether that shape changes.
3. Always Build From the Bottom Up
The first toss makes line 1 at the bottom. The sixth makes line 6 at the top. Write the six totals in casting order and label them before drawing the figure. Reading a printed diagram from top to bottom is not the same as numbering its lines.
- Draw the primary figure using the original solid or broken shape of every line.
- Mark each position whose value is 6 or 9.
- Copy the figure and reverse only those marked positions.
- Identify both figures in a reliable hexagram table, preserving their orientation.
Do not rotate the drawing, swap its upper and lower halves, or turn every line into its opposite. Those operations produce different figures. If several lines change, apply all their changes to form the single relating hexagram.
4. Worked Example: 24.1 Changes to 2
Suppose the totals are 9, 8, 8, 8, 8, 8, from bottom to top. The primary figure has a solid bottom line and five broken lines above it: Hexagram 24, Return. Only the first line changes. Turn that bottom solid line into a broken line, and all six lines are broken: Hexagram 2, commonly called the Receptive or Earth.
The notation 24.1 → 2 means “Hexagram 24, line 1 changing, relating to Hexagram 2.” It does not mean Hexagram 24 followed by Hexagram 1, and it does not assign a date to an event.
In the James Legge translation of the Book of Changes, 24.1, reproduced in James DeKorne's comparison, the line describes “returning from an error of no great extent.” A reflective application might be correcting a small mistake promptly. It is not a promise that an ex-partner, job offer, or lost object will return.
In 24.1 → 2, the changed figure follows from one precise line change; the life application still requires judgment.
5. Read the Text Before Building a Story
Start with the primary hexagram's main text, then read the text for the marked line in context. Finally, consider the relating figure as an additional perspective. Write down the text's imagery before deciding which part of your life resembles it. Separate a translator's words from your own application.
For the example, imagine asking, “How can I approach restarting a neglected project?” Return may invite revisiting the original purpose; the first line can suggest an early course correction; Earth can prompt receptiveness to support. This is an illustrative interpretation, not the only valid reading. In Barrett's discussion of Hexagram 24, returning is likewise not reduced to another person coming back.
6. What If Several Lines Change, or None Do?
No changing lines: all totals are 7 or 8. There is no distinct relating figure produced by line changes. Read the primary hexagram without inventing a hidden moving line. A still reading is not a failed casting.
Several changing lines: the transformation rule stays the same, but methods for weighing the texts differ between traditions and teachers. Some read all moving-line texts together; others use selection rules. Choose a documented method before interpreting and identify it in your notes. Do not announce that one universal priority rule governs every school.
All six changing: every line changes. Hexagrams 1 and 2 also have special all-lines statements in standard translations; consult your edition and its method. Six moving lines are not an instruction to discard the reading or keep recasting until it is simpler.
Line transformation is mechanical; deciding how to weigh multiple line texts belongs to an interpretive tradition.
7. Use AI as a Discussion Partner
After studying a reading, you can use Prism's AI reader to discuss the underlying life question: “What small correction could help me restart this project?” Keep your original text and your own notes separate from the AI response.
This English guide is educational; it does not provide an English-site I Ching casting tool. General AI conversation should not be treated as an authoritative translation or a verified hexagram calculation. Check line numbers against your source, and do not base medical, legal, financial, or safety decisions on a reading.
8. A Learning Checklist and Reading List
- Record the question, coin convention, and six totals in bottom-to-top order.
- Label the primary figure, changing positions, and relating figure separately.
- Practice the 24.1 → 2 example on paper before interpreting a personal question.
- Note your translation and multiple-line method, rather than blending incompatible rules.
- Compare your first interpretation with later observations, including details that do not fit.
- Hilary Barrett, Introduction for Beginners — primary and relating figures and bottom-up construction.
- James DeKorne, Hexagram 24 translation comparison — compare Legge and other translations, distinguishing them from the editor's commentary.
- Hilary Barrett, 24, Returning — a contemporary interpretation of Return.