人法地，地法天，天法道，道法自然
rén fǎ dì, dì fǎ tiān, tiān fǎ dào, dào fǎ zìrán
Humanity follows the earth, earth follows heaven, heaven follows the Dao, and the Dao follows what is natural. — Dào Dé Jīng, ch. 25
Most of what is worth knowing in Jiki Shinkage-ryū (直心影流) is not on the surface of its kata. The work of drawing a form apart, examining it, and finding the connections that run between different parts of the curriculum is called kuzushi (崩し); the word can also name a sudden, spontaneous change, and the two senses turn out to be related. What follows are three studies in kuzushi, arranged as an ascent through the curriculum — the hidden order of initiative, or sente (先手), in tō-no-kata (韜之形), the turning point at its capstone, and the close-quarter application reached in kodachi (小太刀; the short-sword set). I have set them under the old triad of heaven, earth, and man (天地人). The triad names its realms descending, but the line from the Dào Dé Jīng above runs the other way: the practitioner grounds in earth, earth in heaven, heaven in the Dao, and the Dao in what is natural. The essay is read from principle down to application; the practice is built from the ground up toward the spontaneous.
A note on usage: the capstone of the art is written 丸橋 in Jiki Shinkage-ryū and 転 in other lines, and is romanized variously as marubashi or marobashi; throughout, I standardize on marobashi (転).
Heaven — 天
気剣体の一致を会得したとき、剣術の極意は全うするのである
When one has mastered the harmony of spirit, sword, and body, the inner essence of swordsmanship is fulfilled.
Raitō (雷刀) — the variant of jōdan no kamae (上段の構え) used in Jiki Shinkage-ryū, the arms stretched overhead with the tip angled back — looks like a posture built to attack from, and in fact it is. Yet in tō-no-kata we almost never see shidachi (仕太刀) attack directly from raitō, except in the menkage (面影) kata pair. The structure of the set explains why, and with it a good deal about initiative.
The first kata, ryūbi (龍尾; the dragon’s tail), steps forward and back with continuous yokomen (横面) strikes to the side of the head, or to the forearm against an upper-level stance. The two menkage kata drill the same movement as a direct downward cut to the men (面). The first part of teppa (鉄破) waits in raitō and cuts kesa (袈裟; the diagonal cut) to either side against an upper- or mid-level attack. Then, across the second half of teppa, matsukaze (松風), and hayafune (早船), shidachi advances three steps in raitō and cuts down slowly, showing he knows the correct distance, and provokes uchidachi (打太刀) into moving — though often uchidachi does not take the bait. That is unusual for a ryūha (流派; a school of transmission), where ordinarily it is uchidachi who leads. Here shidachi is learning to attack, and most of the lesson is hidden beneath the surface.
What Jiki Shinkage-ryū wants is to know the optimal distance, the ma-ai (間合い), from which to enter in a way that shuts down the opponent’s options. The name teppa — breaking iron — points to it: the kasumi (霞; mist) cut breaks the seigan (正眼; the mid-level guard) the opponent holds, as iron is broken. The reflex to cultivate is that when uchidachi does blink or flinch and move, the cut from raitō — men, yokomen, or kesa, as in ryūbi and menkage — fills the gap without thought.
There is a posture riddle worth sitting with. When the range is a little too close — the opponent has erred, or is about to attack and has not yet moved — one can interrupt from hassō (八相) or from sha (車), the low stance with the sword extended behind between waist and knee. Pre-empting an attack already decided upon but not yet manifested is sometimes called sen sen no sen (先々の先). Hassō is less tiring, the hands less exposed, and the attack very fast; it is inwardly aggressive (ken 懸) but outwardly waiting and hidden (tai 待). In hōjō (法定) we see shidachi attack from hassō and from sha; in tō-no-kata the initial cuts come from raitō, and later, in matsukaze, from sha. But shidachi never adopts hassō anywhere in tō-no-kata. I take that to be a riddle.
To attack from raitō with sudden power, the skill is to relax in the posture while stretching the arms, the shoulder blades drawn down, and to cut with gravity rather than against it, so that the release is like loosing an arrow into flight — no joint locked, what in the Chinese arts is called sōng (鬆), relaxed in a particular technical sense. The point of the relaxation is that when the opponent makes his mistake there is no delay. Here kage (影; shadowing) is an active matter, not a passive miming of another’s movement; it operates at the level of mind and spirit.
Generally we want to provoke the opponent into a mistake. Some lines of Shinkage-ryū (新陰流) do this by leaving an opening, luring an attack from an expected angle. It can work, but it can also slide into a passive habit — the belief that precision alone will win, which tends to curdle in those who never stress-test their practice in sparring. Jiki Shinkage-ryū, as I understand it, does less of this and instead tries to dominate, narrowing the opponent’s options, fixing him in place or driving him back and cutting him down before he reacts. There is a famous account of such a match with Sakakibara (榊原鍵吉). For ordinary practitioners it is likelier that we provoke a flinch — entering before we have attacked, drawing an overreaction — so that the opponent’s attack comes sudden but weak and short, and we can cut through it and fix him, often down the centerline into the head, torso, or forearms.
This is why, in much of tō-no-kata, one party does not react. We are training ourselves not to be perturbed by what the other is doing: fudōshin (不動心; the immovable mind). The reactions in the second six kata are then about how to follow up and still attack when the first entry fails to shake the opponent from his stance.
One more hint is hidden in plain hearing. Jiki Shinkage-ryū kata practice often adopts a two-part kiai (気合) voiced as ya-ei (ヤエイ). The ya, sounded just as ma-ai is broken, can cause an opponent to flinch and give up his stance — though few people’s kiai is good enough to do that (mine is not, after long cultivation), so I do not use the two-part form in sparring. I take the ya-ei rather as a hint to what each kata is doing: we provoke the other person, and attack just as they are deciding to attack — another instance, perhaps, of sen sen no sen, encoded this time in the voice.
Earth — 地
The capstone of tō-no-kata descends from earth. The set’s fourteen short partner forms close on a flowing uchikomi (打ち込み; striking-in practice) called enren (圓連) — the linking of chain-links, or the beads of a mālā (garland, rosary), into a circle — which is said to have once been the fifth kata of the introductory set hōjō, itself built on Daoist five-phase theory. In the present arrangement of hōjō the fifth phase, earth, marks the end of each season as it turns into the next, expressed by a ritual movement, gehan-en (下半円; lower half-circle), that flows into the walking methods, unpō (運法), performed with the breathing of the coming season. There were originally five kata, much like sangakuen (三学円) in Yagyū Shinkage-ryū (柳生新陰流), with a harvest season as the fifth, between summer and autumn. Earth is the phase of transition — the turning point — and enren keeps that character.
The uchikomi itself is a randori (乱取り)–like practice of repeated cutting against a target, a moving suburi (素振り) that introduces the lateral movement otherwise missing from the curriculum. It is done cryptically: one cuts along a line of attack with no combative meaning, so that on the surface it looks like pressure-testing that leads nowhere. The subtlety is that uchi (打) and shi (仕) appear to do the same thing but do not — they perform complementary motions, one yin and one yang, that balance each other. So the capstone teaches that kage, shadowing, can be far more than matching one’s posture against a static kamae (構え); it is the relation of yin to yang, solid to transparent.
What the uchikomi often produces in continuous practice is a difficult ending. Uchidachi has to extend his kiai to signal that the repeated cutting is about to stop — which strains the uchidachi and shidachi roles that Jiki Shinkage-ryū otherwise keeps so cleanly, since uchidachi should be pressing shidachi, not assisting him. Without that coordination the sequence cannot be closed smoothly.
An example from practice. Filling in for a senior student who was ill, I joined the enbu (演武; demonstration) of kata at Kagami Biraki (鏡開き), performing the tō-no-kata and kodachi sections and trying to bring a strong seme (攻め; pressure) to the offering. The ending of the enren sequence came out of rhythm, and shidachi realized he would be struck. He dodged — and from where I stood it was as if he had vanished an instant before my cut landed. This is a skill the art is meant to cultivate: done properly, the practitioner disappears from view. The patron deity of Shinkage-ryū, Marishiten (摩利支天; Skt. Mārīcī), goddess of light, is held to grant the siddhi (attainment, power), or genjutsu (幻術), of invisibility, and a sudden disappearance in coordinated tai-sabaki (体捌き) and sword movement is an instance of it.
Striking with full force into empty space — and, because we had been moving fast and light, holding the shinai (竹刀) too loosely — I found no target, kept my posture, and the shinai flew from my hands like an arrow into the ground. I had lost the weapon but not my balance or my zanshin (残心; sustained vigilance). I reverted to unpō, advancing slowly and strongly to drive shidachi back unarmed; had he attacked, I could have accepted the cut to end the kata or tried to answer, but he mirrored me instead, and in truth anything might have happened. I stepped back, knelt to recover the weapon, and continued to move away while keeping forward pressure throughout. Between us we had spontaneously produced something close to a passage from marobashi, the final section of the art, which my partner had never seen — normally shidachi advancing with kodachi against tachi (太刀), but the spirit was the same. The tactical failure had become an occasion to hold zanshin through the shock of something going suddenly and unexpectedly wrong. Developing shidachi to the point where he can win is, after all, the purpose of tō-no-kata.
Man — 人
The different kata of Jiki Shinkage-ryū relate to one another recursively. The triangle step of sangakuen is encoded within ryūbi and menkage, but only kuzushi and variation reveal it, and finding it prepares the practitioner for the harder kuzushi of kodachi — which in turn feeds back into tō-no-kata, since the movement of kissaki gaeshi (切先返し; returning the sword tip) lets one move around the opponent’s blade in matsukaze, an instance of marobashi, free and unimpeded movement. The curriculum folds back on itself at the point of contact.
Kodachi is the first upper-level set, and it begins to demand refined body mechanics that would be very hard to enter without unpō, hōjō, and tō-no-kata first; it assumes a Jiki Shinkage-ryū practitioner rather than making one. The hips stay square — in the line I was taught, pure Jiki keeps the hips straight where other Shinkage-ryū pull across the lower back to generate power — and on the entry it is essential not to tilt or lean, or the entry weakens and exposes one to the power of the tachi. Earlier sets prepare the ground: tai atari (体当たり; the body strike) in hassō happa (八相発破), at first a ritual-seeming movement, sets the mind needed later in kodachi, where one must enter fully committed, indifferent to success or failure, throwing one’s life away to get close enough to the tachi to live.
Many of the movements have a forward, ritual presentation and a deeper one that emerges when reversed. A continuous, upward-angled tai atari can keep advancing after a downward cut has driven the opponent back; a sideways deflection can be added, into the half-sword position called torii-dome (鳥居止; gate block), useful in an emergency, though uchidachi can press up against it, and shidachi can then flow over the top. The upper-level tai atari of chōtan ichimi (長短一味; long and short as one), the last kata of hōjō, can be an upward deflection that twists at once to stab the face or cut the neck, rather than the long-range ritual thrust first shown. There are many such riddles.
It is worth naming the three levels at which each kata set is practiced. The first draws out the spirit, with long, powerful kiai and a focus on breathing — in the dōjō where I trained we extended the ya-ei kiai for breath training in hōjō, where others use shorter, sharper kiai. The second refines that power into a sharper, more precise instrument. The third quiets the practice and develops the ability to respond and move unencumbered, driven by intuition and wisdom. The progression matters because kodachi, like hōjō, conceals its true intentions, where tō-no-kata is comparatively open: hōjō lays the foundations, tō-no-kata develops tactics and the centerline, kodachi teaches infighting and stability around the central axis, and the later habiki (刃引) set — practiced with rebated-edge swords — puts it together, refining the lower-body connection and the bow of the back.
At the Gassankan (月山館) I practice the close-quarter armed grappling the art calls kogusoku (小具足), a term several traditions share. In the way I organize my teaching, kodachi is the last set of the first group of teachings and kogusoku the first of the private material, so I will keep to a high level here. The six kodachi kata are Fūsei (風勢), Suisei (水勢), Kissaki Gaeshi (切先返; tip reversal), Tsuba Jiri (鍔取; catching the tsuba), Toppi Oppi (突非押非; sudden mistake, sudden thrust), and Enkai (圓快; round and comfortable). Fūsei and Suisei are paired, both ending in a bind (tsuba-zeriai 鍔迫り合い) with the right palm down, one entering from above and one from below; Kissaki Gaeshi and Tsuba Jiri are paired likewise with the right palm up.
The applications branch from how uchidachi is affected by the entry. On Fūsei and Suisei, if he meets strongly one yields as in the formal kata to off-balance him, then — instead of the slow ritual cut with the mu (無) kiai — controls the inside of his right arm and cuts the neck at once; if he stays bound at the tsuba (鍔; sword guard), one slips right, drawing him left, and cuts horizontally, the shorter kodachi getting past his blade; if he bounces off, one steps in and cuts the ganmen (顔面; face) vertically, driving him back. On Kissaki Gaeshi and Tsuba Jiri, alternate footwork lets one bypass the sword to cut the neck directly, or control the upper arm and scapula to double the opponent over, a one-handed arm-bar held just long enough to cut or stab; the Tsuba Jiri binds open onto sweeps and throws in several directions, each followed by a stab as he lands, useful if he begins to grapple or draws a second weapon. Toppi Oppi builds the leg strength for habiki — classically springing up from a half-seiza (正座), though I favor a low crouch adopted from Héběi (冀) Xíngyì (形意), one of the small ways my preservation of the kata differs from orthodox lines. Enkai is the key that unlocks the previous five, and the kuzushi it opens, like habiki and marobashi, remain private to the tradition; I only allude to them.
Tsuba-zeriai is not only for kodachi against tachi. One can meet at the tsuba with tachi as well — beginning ryūbi, for instance, with uchidachi making a T-step to meet the bind rather than cutting — and drill jun (順) and gyaku (逆) entries in free practice with fukuro shinai (袋竹刀; the sheathed practice sword), shidachi off-balancing and cutting the tare (垂れ; the armor’s waist flaps), uchidachi answering with half-sword at close range. The variations all carry the exponent into close contact, a bridge to grappling. As the maxim has it: one mind, any weapon.
The Dao, and the Natural — 道・自然
If gokui (極意) are essential principles and kuzushi the work of uncovering them, the end of that work is not a further technique but a way of moving. The third level of practice — quiet, unencumbered, intuitive — is the same thing the enren incident showed by accident: when the form broke, what answered was not deliberation but marobashi, free and unimpeded movement, arising on its own. This is where the chain of the Dào Dé Jīng comes to rest. Man follows earth, earth heaven, heaven the Dao; and the Dao follows zìrán (自然), what is so of itself. The whole curriculum, read upward, points at the spontaneous.
The principle has its locus classicus in the Kage mokuroku (影目録), the transmission set down in Kamiizumi’s own hand and passed to Yagyū Munetoshi:
懸待表裏は一隅を守らず、敵に随って転変し、一重の手段を施す
Engaging and waiting, the seen and the hidden, defend no single corner; shifting and turning in accordance with the opponent, one brings a single, undivided response to bear.
Kage mokuroku 影目録, transmission from Kamiizumi Hidetsuna (上泉秀綱, c. 1508–1577), founder of Shinkage-ryū, to Yagyū Munetoshi (柳生宗厳, 1529–1606).
The Shinkage-ryū Heihō Kenshinkai (新陰流兵法研心会) glosses marobashi as:
懸待表裡（けんたいひょうり）のはたらきを本源として、敵のはたらきに随って円転・自由・自在なはたらきを為すこと
Taking the working of ken-tai-hyōri (懸待表裡; attack-and-waiting, surface-and-interior) — engaging and waiting, the seen and the hidden — as its wellspring, to perform circular, free, and unhindered action in accordance with the opponent’s own movement.
Shinkage-ryū ni tsuite 新陰流について — accessed June 2026.
The phrase ken-tai-hyōri (懸待表裡, also written 懸待表裏) consists of ken (懸; engaging, seizing the initiative), tai (待; waiting, receiving), and hyōri (表裡; surface and reverse — the outward shown and the hidden intent). Enten (円転; circular, revolving), jiyū (自由; free, unconstrained), and jizai (自在; unrestricted, done at will) name the quality of the movement that results.
Marobashi is ken-tai-hyōri set in motion: the duality of engaging and waiting, surface and depth, taken as the root and then expressed as free, circling, unhindered movement that follows the opponent.
The duality of ken and tai runs from the first study to the last: the hidden initiative of tō-no-kata, the yin and yang of enren, the committed entry of kodachi.
A fuller passage of the same teaching, cited in Ōmori (1991, p. 15) and translated by Trenson (2022), draws the principle out in images of nature: one rests the mind on neither engaging nor waiting but adjusts from moment to moment with the opponent — as a sail is trimmed the instant the wind shifts, or a hawk loosed the moment the hare breaks cover. Here attack is not attack and defense not defense; when one attacks, the mind is in defense, and when one defends, the mind is in attack. It is like a cat asleep beneath the peony in bloom.
What these texts describe is the point at which the duality dissolves into a single, natural responsiveness — the cat that is wholly at rest and wholly ready. These are some of the things that make Jiki Shinkage-ryū a lifelong practice; I hope this writing conveys at least that much.
References
- Lǎozǐ. Dào Dé Jīng, ch. 25. The line used as the epigraph — humanity follows earth, earth heaven, heaven the Dao, and the Dao what is natural (zìrán). Translations consulted: D. C. Lau, Tao Te Ching (Harmondsworth: Penguin, 1963); Roger T. Ames and David L. Hall, Dao De Jing: A Philosophical Translation (New York: Ballantine, 2003).
- Yijing 易經 (Book of Changes). The triad of heaven, earth, and man derives from the “three powers” (三才, sāncái 三才) set out in the Xici and Shuogua commentaries. See Richard Wilhelm and Cary F. Baynes, trans., The I Ching, or Book of Changes (Princeton: Princeton University Press, 1967); Richard John Lynn, trans., The Classic of Changes (New York: Columbia University Press, 1994).
- Kage mokuroku 影目録. Transmission attributed to Kamiizumi Hidetsuna (上泉秀綱) and passed to Yagyū Munetoshi (柳生宗厳). [Source of the ken-tai-hyōri passage quoted above; wording to be confirmed against a published edition.]
- Hall, David A. 2014. The Buddhist Goddess Marishiten: A Study of the Evolution and Impact of Her Cult on the Japanese Warrior. Leiden: Brill (Global Oriental). [On Marishiten / Mārīcī and the siddhi of invisibility.]
- Ōmori Nobumasa 大森宣昌. 1991. Bujutsu densho no kenkyū 武術伝書の研究 [A Study of Martial Art Initiation Documents]. [Source of the Kamiizumi–Yagyū Munetoshi densho on ken and tai, p. 15; publisher to be confirmed from Trenson 2022.]
- Raugas, Mark. 2025. The Truth of the Calm Spirit: The Practice of Shinkage-ryū Heihō as Taoist Internal Alchemy.
- Trenson, Steven. 2022. “Buddhism and Martial Arts in Premodern Japan: New Observations from a Religious Historical Perspective.” Religions 13 (5): 440. https://doi.org/10.3390/rel13050440.
