Keynote Presenters and Artists
Tilke Platteel-Deur
Breathwork, Voice Dialogue, NLP
Since 1978, Tilke Platteel-Deur has been practicing and teaching Breathwork, Voice Dialogue, NLP and the dynamics of relationship, in Holland, Germany, France and Spain. She has long-standing experience in both individual and group work as breathwork therapist, coach, supervisor and trainer.
After graduating Tilke studied classical ballet and modern dance at the Dancing Academy of Rotterdam. Her interest for the art of breathing was awakened by this experience, for it is precisely the breath that directs the movements of modern dance.
From Leonard Orr personally, she learned -in exchange sessions- the fine-tuned Breathwork that is still the core of her work. She did intensive trainings in Voice Dialgoue and the Psychology of Selves with Hal & Sidra Stone, Neurolinguistic Programming (NLP), and Family Constellations with Bert Hellinger, Emotional Freedom Technique (EFT) and Polarity therapy and massage. She is Avatar Master.
From 1999-2001 Tilke has been vice president, and from 2001-2004 president of IBF, the International Breathwork Foundation. She is a member of the Board of Directors of GPBA, the Global Professional Breathwork Alliance. Working with the conscious connected breath as a bridge between thinking and feeling has always been the core of her work. The Spirit of Breath has the power to connect our inner strength and vulnerability, which is the safest form of power imaginable for women as well as men.
Integrating spirituality into normal daily life has always been of great interest to her.
Author of “The Art of Integrative Therapy” – healing the Past on a Soul Level – as well as several articles on Breathwork and the Psychology of Selves among which ‘Hot Water Breathwork’ and ‘Cold Water Breathwork, published in ‘The Healing Breath’ journal and ‘Atman’ journal.
Eleftherios Argyropoulos
Greek mathematician, physicist, researcher, and author
Eleftherios Argyropoulos is a Greek mathematician, physicist, researcher, and author, known for his pioneering work in number theory, linear algebra, and the mathematical structure of the Greek language. At just 19, he built three skateboard ramps using mathematical equations, and later achieved a Guinness World Record by discovering 525 unique proofs of the Pythagorean Theorem.
He studied Mathematics and Physics at Northeastern University in Boston, where he submitted groundbreaking theses in number theory, matrix determinants, and geometry. His work includes a new method for launching satellites into orbit, and a patented formula for accurately calculating complex harmonic series.
A passionate ultramarathon runner and electronic music composer, Eleftherios has completed over 40 marathons and 20 ultramarathons, including a nonstop 174 km run from Delphi to Athens. He has also released four music albums inspired by Greek philosophy and science.
He has authored 11 books, including The Alpha Numeric Intelligence of the Hellenic Language (in English), and is currently working on new research in prime numbers, advanced geometry, and the mathematical intelligence of the Greek language.
Presentation Topic :
“The Mathematical Intelligence of the Greek Language & the Eternal Truth of Numbers”
The great mystic Pythagoras once said, “The wisest of all beings is number.” Indeed, numbers express truth and reveal the secrets of the universe. The alphanumeric system of 27 letters and numbers of the Greek alphabet, the primal connection between signifier and signified, and the thousands of isopsephic (equal-in-value) word pairings, establish Greek as a language of mathematical structure and intelligence.
Through the extensive research and eleven published books of mathematician Eleftherios Argyropoulos, it becomes evident that the Greek language possesses a unique global distinction. This uniqueness goes beyond etymology or the musicality of words — it extends into the mathematical logic and intelligence embedded in the structure of the language itself. This intelligence is demonstrated not only through the intrinsic link between words and meanings, but especially through isopsephic equivalences — words and phrases that share the same numerical value based on the ancient 27-character Greek alphanumeric system.
Referencing Plato’s Cratylus, which argues that the naming of beings is not arbitrary, and combining this with Mr. Argyropoulos’ original research and the work of other scholars, the presentation supports the idea that the Greek language is the language of all languages.
In this keynote presentation, Mr. Argyropoulos will reveal key isopsephic word and phrase pairings, showing how the Greek language encodes cosmic laws, mathematical constants like π = 3.141… and φ = 1.618…, the structure of matter, and even significant insights into both the microcosm and the universe. Furthermore, he will demonstrate how this phenomenon of isopsephy provides evidence of encoded historical knowledge within the Greek language.
In addition, Mr. Argyropoulos will present select proofs from the over 520 unique demonstrations of the Pythagorean Theorem he has discovered. He will also delve into Pythagorean triples, triangles, and number sequences known to the ancient Pythagoreans — such as perfect numbers, amicable numbers, and more.
Dr. Athena Despoina Potari
PhD in Philosophy
Dr. Athina Despina Potari holds a PhD in Philosophy from the University of Oxford, with a Master’s specialization in Platonic Politeia and Cosmology. She is the founder of the Academy of Hellenic Wisdom Athenoa.
In 2020, I was honored with the Philosophy Award by the Academy of Athens for my study on Aristotle’s work. That same year, I received a research fellowship at Harvard University’s Center for Hellenic Studies, where I explored new philosophical horizons inspired by the history of known and unknown Ancient Greek women philosophers. I have taught at the Universities of Oxford, Athens, Patras, Toulouse 1-Capitol, and the Hellenic National Defense School. I am a member of the Central Committee of the Galileo Commission, a scientific community studying the post-materialist paradigm. In 2022, I published with this organization the “Call for the Renaissance of the Spirit in the Humanities”, advocating for the reintegration of spiritual dimensions into academic research based on Hellenic principles.
Alongside my academic studies, I followed a parallel path of spiritual and inner study for over two decades, seeking the Path of Light. I traveled the world studying ancient civilizations and was initiated by teachers of ancient spiritual and healing traditions, especially the Orphic-Pythagorean tradition. I hold a Master Usui Reiki degree (2010) and have practiced asceticism and meditation deeply in nature, especially in mountains, ultimately realizing that the Light I sought was already within me and in the cradle of spiritual light: Blessed Greece.
In 2019, these two streams of my life—academic and spiritual—merged in founding the Academy of Hellenic Wisdom Athenoa, dedicated to Athena, the goddess of wisdom and philosophy. Our Academy continues the Platonic tradition by approaching Greek philosophy as a living, experiential spiritual tradition that combines scientific inquiry with self-knowledge, mystagogy, and spirituality, aiming to awaken consciousness and activate Eû Zên (the Good Life).
We emphasize rigorous study of ancient texts, dialectics, and interdisciplinary approaches uniting philosophical, theological, psychological, physical, and cosmological knowledge, supported by direct experiential practices such as meditation, self-awareness methods, ancient priestly arts, Orphic hymns, and ethical criteria for daily life.
Through this approach, philosophy becomes not abstract theory but a Way of Life and, as Plato said, a “Polity of the Soul.” Our mission is to revive Hellenic teaching and spiritual tradition, fulfilling the Apollonian imperative: Gnōthi Sautón—Know Thyself. Beyond all details, it is simply the primary Consciousness — the Mind knowing and expressing itself in the Eternal Perfect Now.
Kleio Apostolaki (BSc, MSc)
Psychologist
Kleio Apostolaki is Psychologist (MSc Mental Health, King’s College London) with over 20 years of professional experience in Psychotherapy and Ecopsychology.
Specialized in Psychodynamic and Cognitive Behavioral Psychotherapy, EMDR for Trauma, and certified in Ecopsychology (University of Strathclyde). Extensive international training, including Dolphin-Assisted Therapy and PADI Dive Instruction.
Founder and official representative of the International Ecopsychology Society (IES) in Greece with the founding of the Hellenic Ecopsychology Society, former President of the International Ecopsychology Society (2016–2019). Experienced public speaker, author, and media contributor, with a proven track record in designing and delivering innovative therapeutic and educational programs in Greece and abroad.
Catharina von Bargen
Senior Trainer and President of Transformational Breath® France
Catharina von Bargen is a Senior Trainer and President of Transformational Breath® France, and an expert in breathing and stage presence. After ten years in breathwork, Catharina has accompanied thousands of people in their transformation.
She offers a space of presence conducive to depth, authenticity and inspiration.
Catharina lives near Montpellier and leads workshops and training courses in France and elsewhere. In another life, Catharina was a classical guitarist and guitar teacher at the conservatory (CA), which today feeds into her coaching with executives and artists. She has also developed La Reconnexion Quantique, an approach based on presence, body awareness and breathing.
Her passion: sharing our humanity in an unconditional space and seeing life unfold in its fullness in each of us. The common thread running through Catharina’s work is to go deep, to align the heart, body and mind in order to let the very essence of who we are emerge.
Catharina is also the author of ‘Breathe… And discover who you are!’ published by Éditions Eyrolles.
