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The fine layer of the chart

Variables — the four arrows

Four arrows at the corners of the bodygraph. The two on the left are about the body (how to take things in and where to be), the two on the right are about the mind (what drives it and how it looks). This is the finest layer of the chart — and the most sensitive to the accuracy of the birth time.

Where the arrows come from

Each arrow is calculated from the position of a specific point of the chart: Digestion — the Design Sun and Earth, Environment — the Design Nodes, Motivation — the Personality Sun and Earth, Perspective — the Personality Nodes. The position within a line is divided into six colors, a color — into six tones. The color sets the mode itself (each arrow has six of them), and the tone sets the direction: tones 1–3 give a left arrow, tones 4–6 — a right one.

Left and right

A left arrow is an active, focused, “strategic” mode: a narrow beam, a sequence of actions, one thing at a time. A right one is receptive, wide, “peripheral”: a panorama instead of a beam, flexibility instead of a plan. Neither side is better than the other — they’re two ways of working, and the torment begins when you live by someone else’s.

An honest warning about accuracy

The Sun passes through one tone in about 22 minutes. An error in the birth time of a few minutes can flip the Digestion and Motivation arrows to the opposite. That’s why, if the time isn’t exact, we don’t show the Variables at all — guessing here would be dishonest.

You can find out your arrows in the free calculation — they’re shown when the birth time is exact. The material is our own retelling of the system’s mechanics; Human Design is not a scientific system, and all descriptions are a model for self-observation, not instructions.