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What is the I Ching?
The I Ching (Book of Changes) is a Chinese classic built from 64 six-line figures. Each figure pairs a short judgment with an image, and people have used them for centuries as a structured way to think about a situation.
Two trigrams make one hexagram
A hexagram is six lines stacked from the bottom up. Each line is either solid (yang) or broken (yin). The lower three lines and the upper three lines are each one of eight trigrams, and 8 × 8 gives the 64 figures.
Every hexagram has a name, a judgment and an image. The judgment describes the climate of a situation; the image turns it into a picture you can hold in mind.
How a reading works
In the three-coin method, three coins are tossed six times. Each toss produces a line: 6, 7, 8 or 9. The values 6 and 9 are changing lines and generate a second, resulting hexagram.
The lines are read in relation to your question and to the moment of the cast. In the six-line (liuyao) tradition used here, the chart also assigns stem-branch values, six relations and a self/other pair, which is how the reading locates your position in the situation.
What it is not
A reading here is a cultural tool for reflection. It is not a prediction service, a diagnosis, or a substitute for medical, legal or financial advice. Agua states this on every result, and the rule engine never changes its conclusion because of the AI layer.