The I Ching + Zi Wei Dou Shu (紫微斗數)
《周易·繫辭上》第十章 · the I Ching, Great Treatise I, ch. 10
When the noble one is about to act, about to make a move, they put the question to it in words; it takes the question and answers like an echo. Near or far, hidden or deep, nothing is closed to it, and so the thing that is coming is known.
The Hexagram vs. The Chart
A sample reading
“I've been offered a role in another city. Do I take it, or stay where I've built things?”
The reading favors the move — but as a sequence, not a leap. Progress here comes from advancing one settled step at a time; the risk isn't the destination, it's rushing the middle.
The changing line points to the cost of impatience: arrive before the ground is ready and the gains don't hold. The question it hands back to you isn't whether to go, but whether you can go gradually enough to make it stick.
An example. Every reading is cast fresh for your own question.
No. A reading doesn't predict what will happen. It gives you a structured frame — drawn from a 3,000-year-old text on change — to think through a decision more clearly. The conclusion is always yours.
If you've linked a chart, it calibrates tone, timing, and which topics feel timely right now — never the verdict. The cast still answers your question; the chart is only the setting it's answered in.
The hexagram is cast by a deterministic method from the moment you ask — no AI involved in the cast itself. An AI then interprets that hexagram against the classical texts and your question, in plain language.
Your readings and a short profile are stored so future readings can build on them. You can export or delete everything at any time. See the Privacy Policy for details.
No. Many people use it purely as a thinking tool — a structured prompt that surfaces angles, tensions, and costs they hadn't named yet. Take from it what's useful.
iYarrow is built on 梅花易數 (Meihua Yishu), an open-source divination engine by the same author — 183+ stars on GitHub. The interpretation logic is public; iYarrow is the hosted, no-setup version.