The 9 Human Design Centres Explained: Defined vs Undefined

The BodyGraph in Human Design consists of nine energy Centres, comparable to the chakra system but with its own unique interpretation. Each Centre represents a specific aspect of human existence. Whether a Centre is defined (colored) or undefined (white) makes a big difference in how you experience that energy.

Defined vs Undefined

Defined (colored): This Centre has a fixed, reliable energy. It is who you are, regardless of your environment. You radiate this energy out to others.

Undefined (white): This Centre takes in energy from others and amplifies it. It is a place of learning, wisdom, and vulnerability to conditioning. You are not "less" here - you are more flexible here.

The 9 Centres

1. Head (Crown) - Inspiration

Theme: Mental pressure, inspiration, questions Defined: You have a constant flow of inspiration and mental pressure. You inspire others with your ideas. Undefined: You pick up mental pressure from others. You can become overwhelmed by questions that are not yours. Not-Self question: Am I trying to answer questions that do not matter?

2. Ajna - Mind

Theme: Conceptualizing, opinions, thinking Defined: You have a fixed way of thinking. Your opinions are consistent. Undefined: You are flexible in your thinking and can see multiple perspectives. Be careful not to try to seem certain about everything.

3. Throat - Communication & Manifestation

Theme: Speaking, acting, manifesting Defined: You have a reliable way of expressing yourself and taking action. Undefined: Your communication style varies. Wait for the right moment to speak for the greatest impact.

4. G Centre (Self) - Identity & Direction

Theme: Identity, love, direction in life Defined: You have a fixed sense of who you are and where you are going. Undefined: Your identity and direction are influenced by your environment. Consciously choose where you are: your environment determines your direction.

5. Heart/Ego - Willpower

Theme: Willpower, self-worth, the material world Defined: You have reliable willpower and can keep promises. Undefined: Your self-worth fluctuates. Do not make promises that depend on willpower - it is not consistently available.

6. Solar Plexus (Emotional) - Emotions

Theme: Emotions, feelings, desire, passion Defined: You have an emotional wave that influences your moods. Never make decisions at an emotional peak or low. Undefined: You feel the emotions of others more intensely than they do themselves. Learn to distinguish which emotions are yours.

7. Sacral - Life Force

Theme: Life force energy, work capacity, sexuality, fertility Defined: You are a Generator or Manifesting Generator with consistent energy for work and life. Undefined: You are a Manifestor, Projector, or Reflector. You do not have the same consistent work energy and must manage your energy consciously.

8. Spleen - Intuition & Health

Theme: Intuition, survival, health, timing, fears Defined: You have a reliable intuitive system. You know spontaneously what is good for you. Undefined: You pick up the fears of others and can hold on to things that are not good for you.

9. Root - Pressure & Adrenaline

Theme: Stress, adrenaline, pressure to get things done Defined: You have a constant source of adrenaline pressure. You function well under pressure. Undefined: You take on the pressure of others and amplify it. Learn to distinguish which stress is yours.

Defined or Undefined: What Does That Mean in Practice?

Defined does not mean "better" and undefined does not mean "weak." The difference lies in reliability versus flexibility.

A defined Centre acts like a fixed faucet. The energy is always on, at the same pace, whether you are alone or in a crowded room. You do not have to do anything for it. Others feel that energy from you and take it in. That makes you predictable in that area to yourself and to those around you. The shadow side: it can be difficult for you to understand why someone else struggles with it.

An undefined Centre acts like an amplifier. You take in what is in the room and make it bigger. As a result, you sometimes sense what is going on with others more sharply than they do themselves. That is the source of your wisdom: you have experienced thousands of variations in this area. The pitfall is mistaking that absorbed energy for your own and making decisions based on something that does not belong to you.

Completely open (not a single Gate defined) is one step further than undefined. There is no fixed anchor point whatsoever, which means outside influence comes in even more strongly, giving you the greatest chance of conditioning in this area, but also the greatest potential for wisdom.

A simple rule of thumb: what is defined, you give to the world. What is undefined, you learn from the world.

Each Centre in Detail

Do you want to dive deeper into each Centre, with defined, undefined, pitfalls, and practical exercises? There is a comprehensive page for each of the nine Centres:

Frequently Asked Questions About the Centres

How many Centres do you have defined on average? Most people have three to six defined Centres. Zero defined Centres means you are a Reflector, which occurs in about one percent of people.

Can Centres change? No. Your BodyGraph is fixed at the moment of your birth. What does change is how consciously you deal with your open Centres. See also can your Type change.

Do defined Centres determine your Type? In part. Your Type stems from which Centres are defined and how they are connected to the Throat. A defined Sacral makes you a Generator or Manifesting Generator; a motor directly connected to the Throat without a defined Sacral makes you a Manifestor.

Why do I feel different around certain people? Because their defined Centres temporarily define your open Centres. That explains why you feel calm around one person and rushed around another. Read more at what does defined and open mean.

What Do Your Centres Tell You?

Calculate your Human Design chart to see which Centres are defined and undefined for you. This gives you direct insight into where you are consistent and where you are vulnerable to the influence of others. Want to dive deeper into your open Centres? Then read open Centres and conditioning or view the overview of all Centres.