Zhouyi Companion
I Ching online free guidance, hexagram meanings, and a companion app
Explore the Book of Changes through free online divination, 64 hexagram meanings, changing line guidance, and an iPhone app built for ongoing study.
I Ching • online divination • hexagram meanings • app
64 hexagrams • guided interpretation • cross-device history
Start here
Four ways to begin learning and practicing the I Ching
Start with an online reading, browse the sixty-four hexagrams, open a beginner guide, or continue your practice in the app. Each path is designed to help you move from first contact to deeper study.
Guided path
Free online divination
Use the website for a clear online reading flow, then move into hexagram study and saved practice.
Start divination online
Guided path
64 hexagram meanings
Browse the full hexagram list to learn what each pattern means before you go line by line.
Browse 64 hexagrams
Guided path
Beginner I Ching guides
Read evergreen tutorials answering what the I Ching is, how to cast it, and how to interpret changing lines.
Read I Ching guides
Guided path
App-based continuity
Continue your readings on iPhone and iPad with saved history, mobile casting, and a steadier study rhythm.
Explore the app
Coin Casting
Cast six lines using the traditional coin method, then receive a clear interpretation tailored to your question.
Sixty-Four Hexagrams
Study the Book of Changes through original texts, plain-language explanations, and structured commentary.
Save and Share
Keep your readings across devices and share polished hexagram cards when you want to revisit or discuss them.
Featured guides
Read the essential guides before you go deeper
These guides introduce the Book of Changes through casting, interpretation, changing lines, relationships, and decision making, with clear links back to hexagram study.
What Is the I Ching? A Practical Guide to the Book of Changes
Learn what the I Ching is, how the Book of Changes works, and why hexagrams, line texts, and reflection still matter for modern readers.
Read guide
How to Cast an I Ching Hexagram: A Clear Beginner Workflow
Follow a simple I Ching casting process, from asking a question to reading the primary hexagram, changing lines, and resulting pattern.
Read guide
How to Read the I Ching: A Beginner Path from Hexagram to Action
Learn how to read the I Ching step by step, from identifying the hexagram to interpreting line meanings and translating the result into action.
Read guide
How to Use the I Ching: A Practical Workflow for Questions and Readings
Understand how to use the I Ching for reflection, decision making, and divination with a practical workflow for asking questions and reading results.
Read guide
I Ching Hexagram Meanings: How to Read the 64 Patterns
Understand how I Ching hexagram meanings work, from the overall pattern to the image, line statements, and modern interpretation.
Read guide
How to Read Changing Lines in the I Ching
Learn how changing lines work in the I Ching and how to interpret them without overcomplicating the reading.
Read guide
He who knows others is wise; he who knows himself is enlightened.
Laozi