How to use the Book of Changes for a decision
To consult the I Ching, or Book of Changes, start with a real question, generate six lines from the bottom upward, identify the primary hexagram and any moving lines, then read the relevant text. If lines move, they also produce a resulting hexagram.
The mechanics matter. But for a decision, the most useful part often begins after the hexagram appears: what did you expect, resist, hope for, or suddenly see differently?
1. Ask a question you can bring back to your own agency
Traditional divination has included questions about future events, so there is no need to rewrite the history and pretend every I Ching question was modern coaching.
But if your goal is a decision, a question about your own choice is usually easier to use than a demand for secret knowledge about someone else.
Hard to act on: “Will they leave me?”
More usable: “How should I approach this relationship while I do not know what they will choose?”
Hard to act on: “Will I get the job?”
More usable: “What should I pay attention to as I decide whether to keep pursuing this role?”
The second form does not make the I Ching historically non-predictive. It simply keeps a modern decision in the part of the situation you can actually influence.
2. Generate six lines from the bottom upward
Two well-known methods are the older yarrow-stalk procedure and the later three-coin method. The coin method is faster and common in modern practice.
Here is one common three-coin convention: heads count as 3 and tails count as 2. Add the three coins from each toss. Other books may assign the sides differently, so use one convention consistently rather than mixing a chart from one source with scores from another.
| Coins | Total | Line | After a change |
|---|---|---|---|
| 3 tails | 6 | Old yin · broken | Yang · solid |
| 1 head, 2 tails | 7 | Young yang · solid | Stays solid |
| 2 heads, 1 tail | 8 | Young yin · broken | Stays broken |
| 3 heads | 9 | Old yang · solid | Yin · broken |
On a small screen, scroll the table sideways to read all columns.
The old lines, 6 and 9, are the moving lines. Record the first toss as line 1 at the bottom, then build upward until you have six.
A complete six-toss example
Suppose the six totals, written from the first toss at the bottom to the sixth toss at the top, are 7, 7, 7, 6, 6, 6.
| Toss / line | Coins | Total | Draw |
|---|---|---|---|
| 1 · bottom | H + T + T | 7 | Solid, unchanged |
| 2 | H + T + T | 7 | Solid, unchanged |
| 3 | H + T + T | 7 | Solid, unchanged |
| 4 | T + T + T | 6 | Broken, moving |
| 5 | T + T + T | 6 | Broken, moving |
| 6 · top | T + T + T | 6 | Broken, moving |
On a small screen, scroll the table sideways to read all columns.
- Lines 1–3 are solid (7, 7, 7); lines 4–6 are broken (6, 6, 6). The primary figure is Hexagram 11, Tai or Peace, with Heaven below Earth.
- Lines 4–6 are old: each 6 is a broken yin line that changes to solid yang.
- All six lines are now solid, giving Hexagram 1, Qian or The Creative.
The labels help you find the text; they do not settle the decision for you. In this example, you would read the primary figure, note the three active lines of change, and then compare the resulting figure with the facts of your question.
Line 1 is the bottom line. Line 6 is the top. Moving-line interpretation depends on position, so writing the six tosses in the wrong direction changes the reading.
3. Find the primary hexagram
The six-line figure identifies one of the 64 hexagrams. Read its name, judgment, image, and the translation or commentary you are using.
Translations differ. Wilhelm/Baynes is historically influential in the West; Richard Rutt, Richard John Lynn, Edward Shaughnessy, and others give very different scholarly and interpretive angles.
It is worth knowing which translation you are reading rather than treating every English sentence online as interchangeable ancient text.
4. Read the moving lines and resulting hexagram
If your cast contains moving lines, read those line statements. Changing old yin to yang and old yang to yin produces a second hexagram.
Different traditions vary in how they prioritize several moving lines. There is no single internet rule that can honestly stand in for the entire interpretive tradition.
For a beginner, the simplest useful structure is: primary hexagram for the present configuration, moving lines for the active points of change, resulting hexagram for the configuration produced when those lines change.
5. Notice the reaction before you turn it into interpretation
This step is not a traditional rule of the Book of Changes. It is the part Shadow OS cares about.
Before reading five more commentaries, notice the first response.
- What sentence or image caught your attention?
- What did you immediately disagree with?
- Did you feel relief, disappointment, annoyance, or the urge to cast again?
- What did you hope the reading would permit you to do?
None of those reactions proves the reading is correct. They are information about the person asking before the outcome is known.
Bring one real question to Shadow OS.
You'll get a signal to react to. The product keeps the reaction and the later choice separate rather than asking you to obey an interpretation.
Your reading arrives by email. Free.
An ancient system. The decisions we face today.
The Book of Changes has been used for centuries to seek guidance in uncertain situations. Traditionally, you bring a question, cast a hexagram, and interpret its words and images in relation to your circumstances.
At Shadow OS, we see it as a longstanding system for thinking about change. Its questions are still familiar: Is this the moment to act or wait? Does this situation call for persistence or a different approach? What am I overlooking?
Our aim is to make those perspectives useful for decisions people face today—whether to change jobs, have a difficult conversation, set a boundary, or begin again. You should not need to become an expert in an ancient text before you can explore what it might bring to your question.
The perspective is a starting point. You bring the facts of your life, make the choice, and return to what happened. That is how an ancient practice can become part of learning to make decisions today.
What not to do with a reading
Do not treat one translation as a command from outside your life. Do not keep recasting until the answer feels more comfortable and then pretend the earlier reaction never happened. And do not use symbolic material as a substitute for medical, legal, financial, or safety-critical information.
A reading can be interpreted. Your decision still belongs to you.
For the historical background, read what the I Ching is. For the decision-specific argument, read what an outside symbol can and cannot add to a choice.
If you want to preserve the question and your first reaction beside this kind of cast, use this decision-journal template.
- Wilhelm, Richard; Baynes, Cary F., trans. The I Ching or Book of Changes.
- Rutt, Richard. Zhouyi: The Book of Changes.
- Lynn, Richard John. The Classic of Changes.
- Shaughnessy, Edward L. I Ching: The Classic of Changes.
- Eclectic Energies, “Introduction to the I Ching”. Used here for the common three-coin scoring table and bottom-up line order; the worked cast is an original illustrative example.