Energy Centers in Human Design
The nine energy centers are the shapes inside the BodyGraph. Each represents a specific function — how energy moves through you, how you affect others, and where you are most open to conditioning from the people around you.
Centers fall into five functional categories:
| Category | Centers |
|---|---|
| Pressure centers | Head, Root |
| Awareness centers | Head (Ajna side), Ajna, Spleen, Solar Plexus |
| Motor centers | Root, Solar Plexus, Sacral, Heart |
| Manifestation center | Throat |
| Identity center | G Center |
Note: Root is both a pressure center and a motor. Head is a pressure center.
Defined vs. Undefined
Defined centers (colored in) have at least one defined channel connecting them to another center. Their energy is consistent and fixed — it does not change based on environment or who you are around. Defined centers broadcast energy outward and affect others.
Undefined centers (white, but with at least one active gate) take in and amplify the energy of others. They are not weaknesses — they are the sites of your greatest range of experience and eventual wisdom. They are also where conditioning lives: persistent "should" thoughts typically trace back to undefined centers.
Completely open centers (white with no active gates) have no filter at all — they are the most susceptible to outside influence and the most amplifying.
The hierarchy of conditioning — which undefined centers, when undefined, speak most loudly in Not-Self thinking:
- Heart (most influential)
- Solar Plexus
- G Center
- Spleen
- Ajna
- Head
- Root
- Sacral
- Throat (least influential)
Having more defined centers does not mean a stronger chart. It means more consistent output. Undefined centers mean wider range. Both serve a purpose.
The Ajna Center in Human Design
Center type: Awareness centerKeywords: conceptualizing, analyzing, forming opinions, interpreting experience, theoryDefined: ~47% of people | Undefined: ~53% of people
The Heart (Ego) Center in Human Design
Center type: Motor centerKeywords: willpower, self-worth, ego, promises, material world, convictionDefined: ~37% of people | Undefined: ~63% of peopleAssociated gates: 21, 26, 40, 51
The G Center (Identity Center) in Human Design
Center type: Identity centerKeywords: identity, direction, love, self, purpose, navigationDefined: ~57% of people | Undefined: ~43% of people
The Head (Crown) Center in Human Design
Center type: Pressure centerKeywords: inspiration, questioning, curiosity, imagination, pondering existenceDefined: ~30% of people | Undefined: ~70% of people
The Root Center in Human Design
Center type: Pressure center and motor centerKeywords: stress, pressure, drive, pace, momentum, adrenaline, evolutionDefined: ~60% of people | Undefined: ~40% of people
The Sacral Center in Human Design
Center type: Motor centerKeywords: life force energy, sexuality, vitality, creativity, response, staminaDefined: ~70% of people | Undefined: ~30% of people
The Solar Plexus Center in Human Design
Center type: Motor center and awareness centerKeywords: emotion, feeling, passion, desire, mood, sensitivity, creativityDefined: ~53% of people | Undefined: ~47% of people
The Spleen Center in Human Design
Center type: Awareness centerKeywords: intuition, survival, immunity, safety, health, well-being, spontaneityDefined: ~55% of people | Undefined: ~45% of people
The Throat Center in Human Design
Center type: Manifestation centerKeywords: communication, expression, action, manifestation, voiceDefined: ~72% of people | Undefined: ~28% of people