Culture
Katori Shinto Ryu
Immersion in the heritage of Tenshin Shōden Katori Shintō-ryū, an intangible cultural treasure of Japan preserved since the 15th century.
Iizasa Chōisai Ienao — Founder of the school
Chapter I
Origins of
Katori Shintō-ryū
Tenshin Shōden Katori Shintō-ryū is considered the source of many Japanese martial arts. Its history blends real military feats with sacred tradition.
The Founder: Iizasa Ienao
Born in 1387, Iizasa Ienao (later named Choisai) was a high-ranking warrior in the service of the Chiba clan. After surviving many battles and witnessing the decline of his clan, he reportedly retired around the age of 60 to the Katori-jingū shrine, one of Japan's oldest spiritual centers dedicated to the arts of war.
Spiritual Retreat (Shugyō)
For three years, Ienao lived as an ascetic near the temple. Tradition reports that an incident involving the sudden death of a horse after a ritual defilement convinced him of the power of the local deity, Futsunushi no Mikoto. From then on, he imposed a discipline of iron — the "thousand days" — to purify his mind and his martial art.
Divine Revelation
At the end of this asceticism, Ienao reportedly received a divine vision in the form of a young boy (a manifestation of the deity) handing him the Mokuroku (scroll of transmission). This revelation taught him that true victory lies in peace and not in destruction. In tribute, he named his style Tenshin Shōden ("the heavenly and true transmission").
An Immemorial Heritage
Iizasa Ienao reportedly died in 1488, at the exceptional age of 102. His school is the only one to have maintained an unbroken line of headmasters (Sōke) within the same family since the 15th century. In 1960, it was the first martial discipline classified as an Intangible Cultural Treasure of Japan.
Chapter II
Foundations
& Etiquette
Keppan — 血判
The "blood oath". Ancestral tradition where the practitioner signs their commitment to the school with their own blood, swearing to respect the secrecy and lineage.
Koryū — 古流
"Old school". Refers to martial arts founded before the end of the Samurai era (1868).
Omote — 表
The fundamental techniques, known as "surface" techniques, taught to practitioners at the beginning of their progression.
Gogyō — 五行
Advanced techniques related to the five elements, more fluid and complex.
"Victory obtained without fighting is the highest level of strategy."
Chapter III
Specific
Postures (Kamae)
Seigan no Kamae
Natural posture, the tip of the sword aimed at the throat or eyes.
In no Kamae
Sword held vertically near the right shoulder. "In" symbolizes shadow (Yin).
Sha no Kamae
Sword hidden behind the body on the right side. "Sha" means "diagonal".
Jōdan no Kamae
High posture, sword above the head.
Gedan no Kamae
Low posture, the tip protecting the legs.
Chapter IV
Anatomy
of the Sword
Chapter V
Parts
of the Armor
Visualize the opponent in armor (Yoroi).
Chapter VI
Concepts
& Tactics
Ma-ai
間合いThe "spatio-temporal distance". Not just physical, but the appropriate moment to strike.
Zanshin
残心"The remaining mind". State of absolute vigilance after the action.
Metsuke
目付けThe global gaze. One looks at the "distant mountains" to encompass everything.
Kiai
気合The unification of vital energy through a powerful shout from the center (Hara).
Heihō
兵法Strategy. The art of peace through absolute warrior mastery.
Seme
攻meThe intentional pressure that precedes physical movement.
Ki-Ken-Tai-Ichi
気剣体一"Mind, sword and body as one". Unity of movement.
Fudōshin
不動心"Unshakeable mind". Impenetrable calm in the face of danger.
Jo-Ha-Kyū
序破急The cyclic rhythm of movement: beginning, break, acceleration.
Chapter VII
The Arsenal
of the school
The Sword (Ken)
Tool of pure survival. The Bokken (wooden sword) is shorter, thicker, and less curved, designed to simulate real weight and target armor gaps.
The Bō (Staff)
6-shaku staff (1.82 m). Used with sword-like precision, utilizing both ends to thrust or break bones. The weapon that "finishes" the warrior.
The Naginata
Formidable halberd against cavalry. Its circular handling uses centrifugal force to generate devastating power.
The Yari (Spear)
The king of battlefield weapons. Made for thrusting, it requires Olympic calm to intercept the opponent at a distance.