What is the solar plexus abdominal brain?

The Solar Plexus or Abdominal Brain—Unlocking the Spiritual Centre of Man

The solar plexus—often recognised in metaphysical traditions as the abdominal brain—serves as far more than a mere physiological nerve centre. In the profound teachings of William Walker Atkinson, this dynamic hub of the sympathetic nervous system acts as the true spiritual and emotional clearinghouse of human existence. When we look beyond the physical body, the solar plexus reveals itself as the engine of our deepest intuitions, emotional resilience, and vital spiritual energy.

I. The Four Brains of Man

Atkinson outlines a fascinating division of the human nervous apparatus, identifying four distinct centres of consciousness and function—

The Cerebrum—The seat of intellectual thought, reasoning, and conscious logic.

The Cerebellum—The coordinator of motor functions and physical equilibrium.

The Medulla Oblongata—The regulator of involuntary vital functions that keep the physical vessel alive.

The Solar Plexus (The Abdominal Brain)—The profound centre governing emotions, deep instinctive feelings, and our non-verbal connection to the unseen forces around us.

II. The Emotional Centre

Operating independently of the conscious intellect, the solar plexus functions as the primary generator of human passion, emotional expression, and subconscious impressions. Long before the conscious mind has time to analyse a situation, the solar plexus feels it. This centre absorbs the emotional currents of our environment, acting as an inner barometer for our spiritual state and energetic boundaries.

III. Emotional Control

True spiritual mastery requires bringing this powerful abdominal brain under conscious stewardship. Atkinson emphasizes that rather than letting external stimuli throw the solar plexus into chaotic turbulence, we can cultivate mental poise and emotional equilibrium. By mastering the solar plexus, we cease to be tossed about by the changing tides of circumstance, stepping instead into a grounded, unshakeable inner peace.

IV. Vitality and Health

On a physical and energetic level, the solar plexus governs the internal organs, the vital processes of digestion, and the distribution of life force (prana). When this centre is vibrant and unobstructed, vitality flows freely through the physical form, sustaining health, physical endurance, and a robust constitution.

V. Awakening the Solar Plexus

Awakening this dormant centre involves conscious acts of sensitisation and intentional energisation. By turning our awareness inward toward the navel region, we begin to thaw the blockages caused by fear, anxiety, and suppressed emotions, thereby heightening our personal magnetism and vital life expression.

VI. Using the Solar Plexus

Once awakened, the solar plexus becomes a practical instrument for spiritual influence and self-mastery. It allows us to project an aura of calm resilience, direct our focused energy toward constructive ends, and resonate with higher frequencies of courage and harmony that naturally uplift both ourselves and those around us.

VII. Solar Plexus Breathing Exercises

Atkinson provides specific rhythmic breathing techniques designed to stimulate the abdominal brain directly. By directing the breath deep into the abdomen, these exercises massage the nerve centre, oxygenate the surrounding tissues, and anchor the spirit firmly within the physical body, enhancing both emotional stability and spiritual clarity.