Dr. Mark Hosak is the direct successor of Grandmaster Taguchi Sensei in the Taguchi-Ryu Ninjutsu lineage (Nyoken Nyohen Jutsu). Over thirty years of integrative sacred martial arts. PhD in East Asian art history from the University of Heidelberg. Three years of research at Kyoto University. Walked the Shikoku 88-Temple pilgrimage on foot. Founder of Shingon Reiki. Author of multiple books.
But this is the surface. What matters is what came alive in him over those decades.
The mediumistic path
Mark's signature is what he calls mediumistic martial arts — the experience that, after years of disciplined practice and genuine spirit-connection, the spirits themselves begin to teach. Many of the techniques he shows he has never seen — they flow through him. The body becomes the vessel.
This is not a metaphor for him. It is what his grandmaster Taguchi Sensei demonstrated, and what Mark has lived in his own training.
Roots and research
Mark's scholarly grounding is unusual for a martial artist. His doctoral thesis "The Siddham in Japanese Art — Rituals of Healing" examined the origins of Reiki, Kuji Kiri and Shingon, translating Japanese and Chinese source texts. He spent three years in Japan in the 1990s, and has returned many times since. He has practiced and researched in temples of the Shingon, Tendai, and Zen schools. He walked the 88-temple Shikoku pilgrimage and underwent deep spiritual experiences there.
He studied Japanese and Chinese calligraphy with a Zen monk — and this matters, because calligraphy in Japan and China is ritually applied: meditative writing transfers forces into characters and talismans. This is the foundation of the Reiki symbols.
The lineage and the synthesis
From Grandmaster Taguchi Sensei, Mark received the full Taguchi-Ryu transmission — including the inner workings of the synthesis between Ninjutsu, Wing Chun and Escrima, and the Kuji Kiri spine that holds it together. From the Philippines came Pekiti Tirsia Kali and other Escrima/Arnis traditions through exchange partners. From Chinese teachers came Bagua Zhang and Tai Chi.
It all flowed into one integrative system — bound by the shamanic-spiritual dimension that runs beneath all authentic warrior arts.
Why this matters
What you saw in Naruto, in Demon Slayer, in Jujutsu Kaisen — the hand seals, the spirit-work, the lineage — comes from this kind of tradition. Anime references it. Mark lives it. The bridge is real.