



The Invocation of Radiance is more than a book—it’s an initiation into emotional freedom and empowered living. Dr. Peter Gruenewald blends ancient solar alchemy with breakthrough neuroscience to guide you in transforming:
Pain into insight through trauma-informed breathwork.
Shadows into inner sunlight with heart-brain coherence.
Obstacles into catalysts for growth and purpose.
Backed by clinical research showing a 27% stress reduction through breathwork (Fincham et al., 2023), this book offers intuitive practices like the Solar Breath Meditation and the Invocation of Radiance ritual to awaken your inner light. No dogma, just a universal path to clarity and resilience.

Peter is a physician, meditation teacher, and resilience expert. As an Clinical Specialist in Behavioural Sleep Medicine & Integrated General Medicine at University College London Hospital and trainer and former Associate Fellow at Oxford’s Saïd Business School, he integrates neuroscience, breath work, and ancient wisdom to empower transformation. His work, featured in books like The Quiet Heart and Rosicrucian Alchemy, helps individuals turn stress into strength and live with radiant purpose

– A powerful induction into lucid somnambulism, a waking-dream state of deep relaxation and sharp awareness
– The activation of a Solar Anchor (“I am the Sun”)—a breath-and-touch cue to instantly return to clarity, calm, and control anytime
– Threefold alignment of thought, feeling, and will: the inner forces of Light, Warmth, and Life
– Training in entering and exiting trance on command—so you can access flow, inspiration, and intuition in daily life
– A 5-minute lucid stillness segment with guided cues to keep you aware and centered
– A closing manifestation and future-self ritual to align you with your deepest goals and the path of radiant purpose
– Strengthen dream lucidity and control
– Enhance presence, insight, and self-awareness
– Rewire your nervous system into deep parasympathetic calm
– Establish a reliable ritual of spiritual centering and intuitive alignment
– Reconnect with your higher purpose through clear, embodied visualization
– This is the training ground of your awakened self.
– The dreamer and the dream.
– The Sun within you—ever lucid, ever radiant.
“This meditation fills me with compassion, light, and the warmth of the sun. I feel energized by love, grounded in deep existence, and filled with will and determination.”
“The sun, as a powerful force within and around me, gives a strong sense of purpose and service. I believe the world would be better with more awakening, love, courage, and joy.”
“Thank you for channeling the sun’s light in this way. I feel amazing, radiant, and grateful.”
Dr. Reem Mouawwad,
Ph.D. Director of Step Together
“This book rewired my trauma response and awakened a warmth I’d never known. A masterpiece of soul and science.”
The Solar Invocation of Radiance helped me find clarity and peace. I feel steadier and more connected.

Take this 5-question quiz to assess your emotional resilience and receive personalized tools to awaken your inner light with The Invocation of Radiance.