Reference

Glossary

All Human Design terms in one place. Click a term to read the full article.

Core concepts

Where every chart reading begins.

BodyGraph: The graphic map of Human Design: 9 centers, 36 channels, 64 gates.
Personality: The conscious layer of the chart (black activations). Calculated for the moment of birth.
Design: The unconscious layer (red activations). Calculated for the moment when the Sun was 88° earlier.
Activation: The position of a celestial body (Sun, Moon, planet, node) in one of the 64 gates.
Strategy: The decision-making mechanism specific to each of the 5 types. The most practical guidance in the system.
Signature: The positive state that arises when you live by your strategy: Peace / Satisfaction / Success / Wonder.
Not-Self: The opposite state: Anger / Frustration / Bitterness / Disappointment. A signal that you have drifted from your path.
Transit: The position of the planets right now (not at birth). Transit affects everyone equally but shows up differently depending on the chart.

Aura and basic nature.

Manifestor: ~9% of people. Closed aura, initiator. Strategy: inform.
Generator: ~37%. Open aura, powerful Sacral. Strategy: wait to respond.
Manifesting Generator: ~33%. Hybrid: Sacral + motor-to-Throat connection. Strategy: respond, then inform.
Projector: ~20%. Focused aura. Strategy: wait for the invitation.
Reflector: ~1%. All centers open. Strategy: wait a lunar cycle (28.5 days).

Energy hubs of the body. Each can be "defined" or "open".

Defined or open — half the meaning of the chart.

Defined center: Has at least one fully closed channel. Energy is fixed and consistently yours.
Open center: No closed channels. Amplifies and reflects others' energy. A source of Not-Self conditioning but, when lived correctly, a place of wisdom.
Completely open center: None of the center's gates are activated. The purest "mirror" position in the chart.
Hanging channel / hanging gate: One gate is activated; its pair is not. Does not define the center, but creates a sense of "yearning for the other side".

The body's mechanism for making decisions.

Emotional: Wait for clarity — ride the emotional wave. Never decide at the peak.
Sacral: Instant body response of yes/no to a specific question.
Splenic: A quiet intuitive signal that sounds only once.
Ego-Manifested: The Heart's voice through the Throat: what you say, so it shall be.
Ego-Projected: Decisions emerge through dialogue, through the voice.
Self-Projected: G center: speak the decision aloud and listen to your own voice.
Mental (Outer): Voice your thoughts in the right environment; don't decide with the mind alone.
Lunar: Reflectors only: wait for a full lunar cycle (~28.5 days).

12 role configurations: Personality Sun line / Design Sun line.

Line 1 — Investigator: Needs a foundation of knowledge. Anxiety without grounding.
Line 2 — Hermit: Natural talent that emerges through solitude.
Line 3 — Martyr / Experimenter: Learns through trial, error, and experiment.
Line 4 — Opportunist / Friend: Network person; influence through a close circle.
Line 5 — Heretic / Savior: Others project their problem-solving needs onto this person.
Line 6 — Role Model: Three life phases: experiment → roof → wise model.
Profiles: All 12 combinations — from 1/3 Investigator-Martyr to 6/3.

The structure of definition in the chart.

Gate: One of the 64 I Ching hexagrams, anchored to a center. Activated by one of the 13 celestial bodies.
Channel: A pair of gates in different centers. When both are activated the channel closes and both centers become defined.
Line: 1–6: subdivision of a gate into 6 equal parts of 0.9375°. Defines the nuance of an activation.
Color / Tone / Base: Finer subdivisions of the line (6/6/5 each). Used in advanced analysis and the Variables (PHS) system.

How many "islands" exist in the chart, and what is the overarching life theme.

Definition: How many connected "islands" the defined centers form: Single / Split / Triple / Quadruple / No definition.
Incarnation Cross: 4 gates: Sun/Earth of Personality + Sun/Earth of Design. The overarching theme and life purpose.
Right Angle: ~70%. Personal fate — learning through one's own experience.
Juxtaposition: ~2%, profile 4/1 only. Fixed fate, a very narrow role.
Left Angle: ~28%. Transpersonal fate — lived through encounters with others.

Dynamics through time and in relationships.

Composite: The couple's chart: the union of two charts, analyzed for the channels that emerge.
Electromagnetic channel: Each partner holds one gate of the channel — the most magnetic dynamic.
Dominance: Both partners hold both halves of the channel. Often produces competition.
Companionship: Both hold the same gates. A shared language.
Compromise: One partner has the full channel; the other has half. A source of growth and friction.