What is the I Ching?
The I Ching (易經 — Yì Jīng, “Book of Changes”) is one of the oldest texts in the world. A Chinese oracle and philosophical framework, it has been consulted for guidance and reflection for over 3,000 years.
Structure: 64 hexagrams
The I Ching is built from a binary system — broken (yin) and unbroken (yang) lines stacked in groups of six. Each combination of six lines forms a hexagram. With two possible states per line and six lines per hexagram, the system produces exactly 64 unique hexagrams.
Each hexagram has a name, an image, a judgment, and a set of changing-line texts. Together they describe an archetypal situation or quality of energy.
The 8 trigrams
Before reaching hexagrams, the binary lines are grouped into trigrams — stacks of three lines. There are 8 trigrams (2³), each representing a primal force: Heaven, Earth, Thunder, Water, Mountain, Wind, Fire, and Lake. A hexagram is formed by stacking two trigrams, giving 8 × 8 = 64 combinations.
How it connects to Human Design
Human Design maps the 64 hexagrams directly onto the Bodygraph as gates. Each of the 64 positions on the Bodygraph wheel corresponds to one hexagram, and carries that hexagram's archetypal energy. The six lines of each hexagram also correspond to the six lines of the Human Design profile system.
This means every gate in your chart carries the full depth of its I Ching hexagram — the image, the judgment, and the transformative potential of its changing lines.
The I Ching as a living philosophy
Beyond its use as an oracle, the I Ching is a philosophy of change. It holds that all situations are transitory — that yin and yang are always moving toward each other, and that understanding where you are in a cycle is the beginning of wisdom.
In Human Design, this philosophy extends to how we understand energy: defined and undefined centers, consistent and variable activations, and the movement of planetary transits through the 64 gates of the wheel.
Explore your gates
Gatelines maps your chart's gates back to their I Ching hexagrams, letting you explore the classical meaning alongside your Human Design interpretation. Generate your chart to get started →