I Ching

Coin Casting Method: How to Consult the I Ching

This page explains Coin Casting Method: How to Consult the I Ching as a practical cultural reference, covering the core idea, common use cases, careful checks, and responsible limits so readers can compare traditional guidance with real conditions.

2026-02-26 · Updated 2026-06-07

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Our editorial team researches classical Chinese metaphysics and feng shui texts, fact-checks references against the original sources, and reviews every article before publication. We aim to keep traditional concepts clear and practical, and we stay transparent about what these readings can and cannot tell you.

Use this guide to understand Coin Casting Method: How to Consult the I Ching in context, compare several signals, and avoid treating any single traditional rule as a fixed promise.

Coin casting is a randomisation method, not a communication with spirits

The three-coin method is the most popular way to consult the I Ching. It involves tossing three coins six times to generate a hexagram. Each toss produces one line, from bottom to top. The method is simple, requires only three coins, and takes about five minutes. It is a randomisation method — it generates a hexagram by chance, not by supernatural communication.

The honest view: when you toss coins, you are generating a random result. The randomness is the point. It is not that the coins are 'guided' by a supernatural force. The randomness breaks your habitual thinking patterns and forces you to consider a perspective you would not have chosen yourself. The hexagram you receive is a random prompt for reflection. The value is in the reflection, not in the method of generation.

Three-coin I Ching casting method reference showing line values and hexagram construction process
Three-coin I Ching casting method reference showing line values and hexagram construction process

How to cast a hexagram with three coins

Here is the step-by-step process:

StepActionDetails
1. Formulate your questionAsk a clear, open-ended question about a situation you are facingDo not ask yes/no questions. Ask 'What should I consider about...' or 'What is the situation with...' A good question is specific but open. Bad: 'Will I get the job?' Good: 'What should I consider about the job opportunity at Company X?'
2. Prepare three coinsUse three identical coins. Any coins will workChinese coins with a square hole are traditional, but any coins are fine. Assign heads = yang (value 3) and tails = yin (value 2). Consistency matters — always use the same heads/tails assignment
3. Toss the coins six timesToss all three coins at once. Record the result after each toss. Build the hexagram from bottom to topThe first toss is the bottom line (line 1). The sixth toss is the top line (line 6). Record each toss before tossing again
4. Determine the line typeCount the total value: 3 heads = 9 (changing yang, —o—), 3 tails = 6 (changing yin, - -x- -), 2 heads + 1 tail = 8 (stable yin, - -), 2 tails + 1 head = 7 (stable yang, —)The values: 6 = old yin (changing), 7 = young yang (stable), 8 = young yin (stable), 9 = old yang (changing). Only 6 and 9 are changing lines
5. Identify the hexagramFind the hexagram in a reference tableLook up the hexagram by its trigrams. The lower three lines form the lower trigram. The upper three lines form the upper trigram. Each trigram has a number (1-8) that you can use to find the hexagram
6. Read the interpretationRead the judgment, the changing lines (if any), and the relating hexagram (if there are changing lines)If there are no changing lines, read only the judgment. If there is one changing line, read that line text. If there are multiple changing lines, read the judgment of the relating hexagram. The relating hexagram is formed by changing all changing lines to their opposite

Three rules for effective I Ching consultation

Here is how to get the most value from an I Ching consultation:

  • Ask one question at a time. Do not ask multiple questions in one consultation. The hexagram you receive is a response to the question you asked. If you ask multiple questions, you do not know which question the hexagram is addressing. If you have multiple questions, do multiple consultations, one per question.
  • Do not re-consult on the same question. If you do not like the hexagram you received, do not toss again hoping for a different result. The hexagram is a prompt for reflection. If you do not like the prompt, that is a signal that you are avoiding something. Reflect on why you are resisting the perspective the hexagram offers. If you genuinely need to re-consult, wait at least a day.
  • Write down your interpretation. After you receive the hexagram, write down what you think it means for your situation. This is the most important step. The act of writing forces you to articulate the connection between the hexagram and your situation. It is this act of articulation — not the hexagram itself — that produces insight.

A worked example: a complete coin casting

A woman is considering whether to start a side business. She formulates her question: 'What should I consider about starting a side business this year?' She tosses three coins six times with the following results:

Toss 1 (bottom): 2 tails + 1 head = 7 (stable yang, —). Toss 2: 3 heads = 9 (changing yang, —o—). Toss 3: 2 heads + 1 tail = 8 (stable yin, - -). Toss 4: 2 tails + 1 head = 7 (stable yang, —). Toss 5: 3 tails = 6 (changing yin, - -x- -). Toss 6 (top): 2 heads + 1 tail = 8 (stable yin, - -).

The hexagram is: — (bottom), —o—, - -, —, - -x- -, - - (top). The lower trigram is ☲ (Li, Fire). The upper trigram is ☳ (Zhen, Thunder). Fire below Thunder is hexagram 21 (䷔, Shi He, Biting Through).

The judgment of hexagram 21: 'Biting Through has success. It is favourable to let justice be administered.' The theme is about cutting through obstacles or resolving a difficult situation. There are two changing lines: line 2 (changing yang) and line 5 (changing yin). The relating hexagram, formed by changing both lines, is hexagram 25 (䷘, Wu Wang, Innocence).

Line 2 says: 'Bites through tender meat so that the nose disappears. No blame.' This suggests that the initial difficulty will be easier than expected. Line 5 says: 'Bites through dried meat and receives yellow gold. Perseverance brings reward.' This suggests that persistent effort will lead to material reward.

The relating hexagram 25 (Innocence) says: 'Innocence. Supreme success. Perseverance furthers. If someone is not as he should be, he has misfortune, and it does not further him to undertake anything.' This warns that the venture must be pursued with integrity.

She interprets: the side business idea is worth pursuing, but only if she does it honestly and sustainably. The initial difficulty (Biting Through) will be manageable, and persistent effort will bring reward. She decides to start small, test the market, and grow gradually. The I Ching did not tell her whether to start the business. It gave her a framework for thinking about how to start it.

The honest limit

The three-coin method is a randomisation technique. It generates a hexagram by chance. The hexagram is a prompt for reflection, not a message from a supernatural source. The value of the method is in the reflection it prompts, not in the method itself. Use the coin method as a tool for structured thinking. The best insight comes from your own reflection on the hexagram, not from the coins.

Disclaimer: This content is for informational and cultural reference purposes only. It does not constitute professional medical, legal, financial, or psychological advice. Readers should exercise their own judgment and consult qualified professionals for specific concerns.

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This article is based on publicly available materials in traditional Chinese metaphysics and feng shui. It is intended as cultural reference and background knowledge only. Metaphysical predictions and feng shui suggestions are not substitutes for professional medical, legal, financial, or psychological advice. We encourage readers to apply their own judgment when interpreting the content. Learn more about our content guidelines