In Brief
In Human Design, inner authority answers a fundamental question: how should I make my decisions?
According to this system, one of the primary sources of human suffering comes from making decisions with the mind rather than with one's correct authority. The mind — however brilliant at analyzing, communicating and reflecting — is not designed to determine the direction of your life. Each person possesses a specific bodily intelligence, a mechanism more reliable than rational thought for navigating important choices.
Authority is determined by the configuration of defined centers in your bodygraph. It follows a strict hierarchy: if the Solar Plexus Center is defined, the authority is always emotional — regardless of what other centers are active. If the Solar Plexus is undefined but the Sacral is defined, the authority is Sacral. And so on.
Important: Human Design is a traditional system arising from a transmission in 1987. It is not scientifically validated. These concepts are offered as tools for self-exploration, not as absolute truths.
The 7 Authorities
Emotional Authority — Solar Plexus
Center: Solar Plexus (defined) Estimated prevalence: approximately 50% of the population Types: all types can have this authority
If your Solar Plexus Center is defined, this is automatically your authority, regardless of what other centers are active.
The Solar Plexus operates in an emotional wave — a biochemical cycle that oscillates between enthusiasm and doubt, joy and sadness. No decision made at a single point on this wave is reliable. The day you feel euphoric about an opportunity is not the best moment to decide. Neither is the day you're at the bottom of the wave.
Key principle: there is no truth in the present moment for emotional authority. Clarity comes with time.
In practice, this means:
- Never making an important decision the day it is presented
- Letting the wave run its course — feeling the enthusiasm, then the doubt, then both together
- Waiting for the point where, after several cycles, a clarity emerges that persists regardless of where you are on the wave
- For major decisions, waiting several days or even weeks
Emotional clarity is not the absence of emotion. It is a state where you know, even while still having emotions, that you are aligned with your choice.
Common pitfall: deciding when you're at the peak (the "yes" of excitement) or at the trough (the "no" of fear). Both are unstable positions on the wave.
Sacral Authority
Center: Sacral (defined), Solar Plexus (undefined) Estimated prevalence: approximately 35% of the population Types: Generators and Manifesting Generators only
The opposite of emotional authority, sacral authority operates in the present moment. The Sacral Center — the most powerful motor in the body — generates a visceral, binary response: yes or no, engage or don't engage.
This response is not a thought. It is not an emotion. It is a physical sensation, often accompanied by spontaneous sounds:
- "Uh-huh" — a surge of energy, a pull forward (yes)
- "Uh-uh" — a contraction, the body pulling back (no)
These sounds precede thought. They emerge before the mind has had time to intervene.
In practice:
- Frame decisions as closed questions (yes/no)
- Observe the body's immediate response, before any analysis
- Trust the first inner movement
- Ask a trusted person to pose yes/no questions about your important choices — external activation often makes the response clearer
Note: if your Solar Plexus Center is defined, you have emotional authority, not sacral — even if you also have a defined Sacral.
Splenic Authority
Center: Spleen (defined), Solar Plexus and Sacral (undefined) Estimated prevalence: approximately 10–11% of the population Types: Projectors and Manifestors primarily
The Spleen is the center of survival instinct, immunity, and instantaneous intuition. It is the most ancient intelligence in the body — operating at the speed of instinct.
Splenic authority manifests as a flash: a sudden, subtle knowing that arrives once. The Spleen does not repeat itself. If you miss the signal, it doesn't come back.
This inner voice is often very quiet — not a spectacular intuition, but a whisper: a slight unease, a calm certainty, a rising alert, or conversely a sense of "this is right."
In practice:
- Develop fine body awareness (meditation, yoga, somatic practices)
- Act on the first signal, without waiting for confirmation or analysis
- Learn to distinguish splenic intuition from conditioned fear — fear is loud and repetitive; splenic intuition is quiet and one-time
- Practice on simple daily decisions to learn to recognize the signal
Particular feature: splenic authority is deeply tied to physical health. People with this authority often have a refined sensitivity to what is nourishing or harmful for their body.
Heart/Ego Authority
Center: Heart/Ego (defined and connected to the Throat or G Center) Estimated prevalence: approximately 1–2% of the population Types: Manifestors and Projectors
This authority is rare. It occurs when the Heart Center is defined and connected to either the Throat (Ego Manifested) or the G Center (Ego Projected), while the Solar Plexus, Sacral, and Spleen are undefined.
The Heart Center operates through will and desire. For these people, the correct decision is the one the heart truly wants — not what one "should" want, not what others expect, but what one is genuinely willing to commit to.
Two expressions:
- Ego Manifested (Heart connected to Throat): the decision reveals itself in what the heart declares. Words that emerge spontaneously — "I want to do this" or "no, that doesn't interest me" — are the authority.
- Ego Projected (Heart connected to G Center): talking about one's options with a trusted person helps the heart's truth emerge. It's not advice one seeks, but a mirror.
Important: the Heart Center works in cycles — periods of effort followed by essential recovery. Committing beyond the genuine available will leads to burnout and broken promises.
Self-Projected Authority — G Center
Center: G Center (defined and connected to Throat), no lower motor defined Estimated prevalence: approximately 2–3% of the population Types: Projectors only
Self-Projected Authority is exclusive to Projectors. It operates through a particular dynamic: truth emerges by hearing yourself speak.
The G Center is the center of identity, love, and life direction. When connected to the Throat, the right decision is revealed in the very act of verbalization. By speaking about one's options to a trusted person — not to get advice, but to hear oneself — the person discovers which direction is aligned with who they truly are.
The signal is not in the words, but in the energy of the voice: a certain warmth, vitality, presence when speaking about the right option. And a flat, lifeless, or forced voice when speaking about the wrong one.
In practice:
- Find a "sounding board" — someone who listens without advising
- Speak freely about your options, without a pre-set script
- Observe which choice makes your voice sound different
- Ask yourself: "Does this feel like me?"
Mental / Environmental Authority
Center: Head and/or Ajna only (no motors or Spleen defined) Estimated prevalence: approximately 2–3% of the population Types: Mental Projectors
Mental Projectors have no inner authority in the traditional sense. Their only defined centers are above the Throat — the mental processing centers. This doesn't mean they can't decide, but that their decision-making process is fundamentally different.
For these people, clarity emerges from environment and conversation:
- Environment: certain spaces, certain places, certain atmospheres create clarity that others obscure. Being in the right environment is foundational.
- Conversation: talking about one's decision with several different people — not to get advice, but to hear one's own thinking resonate from different angles.
It isn't the mind that decides. It's the combination of the right environment, time, and speech that allows a direction to emerge.
Common difficulty: feeling "defective" for lacking a clear inner signal. This authority is not a lack — it's a different way of accessing clarity.
Lunar Authority — Reflectors
Center: no defined centers Estimated prevalence: less than 1% of the population Types: Reflectors only
Reflectors have no defined centers in their bodygraph. Their decision-making mechanism rests on the lunar cycle — approximately 28 days.
The Moon travels through all 64 hexagrams of the I Ching in 28 days. For Reflectors, each day brings a different perspective depending on where the Moon is. One day may feel crystal clear; the next, the same question may seem murky or undesirable. No single day in isolation is representative.
Lunar authority requires:
- Letting a decision "infuse" for a complete 28-day cycle
- Observing your daily responses without clinging to any of them
- Looking for patterns that emerge over time: are the "yes" days more numerous than the "no" days?
- Speaking with different people throughout the cycle to refine perception
It's the slowest decision-making process in the system — and for the Reflector, the most reliable.
How to Discover Your Authority
Your authority appears in your bodygraph — the personalized Human Design chart calculated from your birth date, time, and location. It is generally explicitly indicated on the chart or in the associated report.
To read your bodygraph:
- Look at which centers are colored (defined) and which are white (undefined)
- Check if the Solar Plexus is defined → emotional authority
- If not, check if the Sacral is defined → sacral authority (Generators/MGs only)
- If not, check if the Spleen is defined → splenic authority
- If not, check the Heart Center connections → ego authority
- If not, check G Center connections → self-projected authority
- If only Head and/or Ajna are defined → mental/environmental authority
- If no center is defined → lunar authority (Reflector)
Several free websites allow you to generate a bodygraph by entering birth data.
Validation
Nature of the system: Human Design is a synthetic system developed by Ra Uru Hu in 1987, integrating astrology, Kabbalah, the I Ching, and quantum physics into a framework that is not scientifically validated. It is a personal development tool offering archetypes and frameworks for reflection — not a medical or psychological diagnosis.
Recommended use: Treat the concepts of this system as hypotheses to test in your own experience, not as absolute truths. What resonates with your lived reality may be useful; what doesn't correspond may simply not apply to you.
Further reading: Primary sources include the works of Ra Uru Hu published by Jovian Archive, as well as The Definitive Book of Human Design by Lynda Bunnell and Ra Uru Hu (2011).