『五輪書』（ごりんのしょ）は、宮本武蔵の著した兵法書。武蔵の代表的な著作であり、剣術の奥義をまとめたといわれる。

寛永20年（1643年）から死の直前の正保2年（1645年）にかけて、熊本県熊本市近郊の金峰山にある霊巌洞で執筆されたとされる。

自筆本である原本は焼失したと伝えられる。写本は細川家本を始め、楠家旧蔵本・九州大学本・丸岡家本・狩野文庫本、底本不明の『劍道祕要』収録などがある。自筆本が現存せず写本間での相違も多いことや、武蔵の時代よりも後の価値観に基づく記述が多いこと、さらに同時代の文献に武蔵が五輪書を書いたと傍証できるものがないことなどから、武蔵の死後に弟子が創作したという説もある。

構成

書名の由来は密教の五輪（五大）からで、それになぞらえて「地・水・火・風・空」の五巻に分かれる。

地の巻

自らの流を二天一流と名付けたこと、これまでの生涯、兵法のあらましが書かれている。「まっすぐな道を地面に書く」ということになぞらえて、「地の巻」とされている。

水の巻

二天一流での心の持ち方、太刀の持ち方や構えなど、実際の剣術に関することが書かれている。「二天一流の水を手本とする」剣さばき、体さばきを例えて、「水の巻」とされている。

火の巻

戦いのことについて書かれている。個人対個人、集団対集団の戦いも同じであるとし、戦いにおいての心構えなどが書かれている。戦いのことを火の勢いに見立て、「火の巻」とされている。

風の巻

他の流派について書かれている。「風」というのは、昔風、今風、それぞれの家風などのこととされている。

空の巻

兵法の本質としての「空」について書かれている。

「風の巻」における他流派批判

• 長太刀を用いる流派に対しては、接近戦に不向きであり、狭い場所では不利となり、何より長い得物に頼ろうとする心がよくないと記す。
• 短太刀を用いる流派に対しては、常に後手となり、先手を取れず、相手が多数の場合、通用せず、敵に振り回されると記す。
• 太刀を強く振る（剛の剣の）流派に対しては、相手の太刀を強く打てば、こちらの体勢も崩れる上、太刀が折れてしまうことがあると指摘する。
• 妙な足使い（変わった足捌き）をする流派に対しては、飛び跳ねたりしていたら、出足が遅れ、先手を取られる上、場所によっては動きが制限されると指摘する。
• 構え方に固執する流派に対しては、構えは基本的には守りであり、後手となる。敵を混乱させるためにも構えは柔軟であるべきと記す。
• 奥義や秘伝書を有する流派に対しては、真剣の斬り合いにおいて、初歩と奥義の技を使い分けたりはしないとし、当人の技量に応じて指導すべきと記す。

これらの他流派批判をすることにより、二天一流の有用性を説いている。

関連項目

• オリンピック - 五輪の旗を掲げるオリンピックを「五輪」と訳したのは読売新聞の川本信正記者。由来は「五輪書」からで、文字数が減らせることから他のマスコミに普及した。
• ヴァーストゥ・シャーストラ

関連書籍

• 渡辺一郎　『五輪書』 岩波書店〈岩波文庫〉、ISBN 4003300211
  • 底本　細川家本
• 三橋鑑一郎注　『劍道祕要』　体育とスポーツ出版社、2002年、ISBN 4-88458-132-6
  • 五輪之書『劍道祕要』附録 武蔵實傳二天記　武徳誌発行所　明治42年9月(1909年)　鹿屋体育大学附属図書館の校訂
• 魚住孝至校注　『定本五輪書』　新人物往来社、ISBN 4-404-03238-2
  • 底本　細川家本　楠家旧蔵本、九州大学本、丸岡家本、狩野文庫本を参照
• 大倉隆二訳・校訂　『決定版五輪書現代語訳』　草思社、ISBN 4-7942-1306-9
  • 九州大学所蔵本。福岡藩家老　吉田家。
• 松延市次訳・校訂、松井健二監修　『決定版　宮本武蔵全書』　弓立社、ISBN 4896673018
  • 楠家本
• 松延市次編　『校本五輪書』　（第一分冊　諸本一覧　2001年）（第二分冊　索引編・付ロシア語版『五輪の書』　2003年）（第三分冊　資料編　2001年）自家版
• 長尾剛　『新釈「五輪書」』　PHP研究所、2002年、ISBN 4-569-57761-6

外部リンク

• 五輪書　解題

The Book of Five Rings (五輪書, Go Rin no Sho^?) is a text on kenjutsu and the martial arts in general, written by the swordsman Miyamoto Musashi circa 1645. There have been various translations made over the years, and it enjoys an audience considerably broader than only that of martial artists: for instance, some business leaders find its discussion of conflict and taking the advantage to be relevant to their work. The modern-day Hyōhō Niten Ichi-ryū employs it as a manual of technique and philosophy.

Musashi establishes a "no-nonsense" theme throughout the text. For instance, he repeatedly remarks that technical flourishes are excessive, and contrasts worrying about such things with the principle that all technique is simply a method of cutting down one's opponent. He also continually makes the point that the understandings expressed in the book are important for combat on any scale, whether a one-on-one duel or a massive battle. Descriptions of principles are often followed by admonitions to "investigate this thoroughly" through practice rather than trying to learn them by merely reading.

Musashi describes and advocates a two-sword style (nitōjutsu): that is, wielding both katana and wakizashi, contrary to the more traditional method of wielding the katana two-handed. However, he only explicitly describes wielding two swords in a section on fighting against many adversaries. The stories of his many duels rarely refer to Musashi himself wielding two swords, although, since they are mostly oral traditions, their details may be inaccurate. Some suggest that Musashi's meaning was not so much wielding two swords "simultaneously", but rather acquiring the proficiency to (singly) wield either sword in either hand as the need arose.^{[citation needed]} However, Musashi states within the volume that one should train with a long sword in each hand, thereby training the body and improving one's ability to use two blades simultaneously.

The five books

Although it is difficult to grasp it from the book, Go Rin No Sho, these books are actually the teachings which Musashi preached to his students in his own dōjō. Despite taking some ideas from others, the books are not based on any other school of teaching.

The five "books" refer to the idea that there are different elements of battle, just as there are different physical elements in life, as described by Buddhism, Shinto, and other Eastern religions. The five books below are Musashi's descriptions of the exact methods or techniques which are described by such elements.

The term "Ichi School" is referred to in the book, Go Rin No Sho. When referring to such books, it refers to "Niten No Ichi Ryu" or "Ni Ten Ichi Ryu", which means, when literally translated, "Two heaven, one school", although many could see the translation as "Two Swords, One spirit", or "Two Swords, One Entity". However, the translation of "Two Swords, one Dragon" was thought to be a transliteral misinterpretation of the Kanji word Ryu.

• The Book of Earth chapter serves as an introduction, and metaphorically discusses martial arts, leadership, and training as building a house.
• The Book of Water chapter describes Musashi's style, Ni-ten ichi-ryu, or "Two Heavens, One Style". It describes some basic technique and fundamental principles.
• The Book of Fire chapter refers to the heat of battle, and discusses matters such as different types of timing.
• The Book of Wind chapter is something of a pun, since the Japanese character can mean both "wind" and "style" (e.g., of martial arts). It discusses what Musashi considers to be the failings of various contemporary schools of sword fighting.
• The Book of the Void chapter is a short epilogue, describing, in more esoteric terms, Musashi's probably Zen-influenced thoughts on consciousness and the correct mindset.

The Book of Earth^[1]

The Earth book, according to Go Rin No Sho, is mentioned as the book that refers expressly to the strategy taught by Musashi at the Ichi School, and it is said to be how to distinguish the way through "Sword-Fencing", or "Swordsmanship". The idea of strategy would be encouraged to be very astute in their study and strategy:

Know the smallest things and the biggest things, the shallowest things and the deepest things. As if it were a straight road mapped out on the ground ... These things cannot be explained in detail. From one thing, know ten thousand things. When you attain the Way of strategy there will not be one thing you cannot see. You must study hard.

Upon their mastery of the strategy and timing listed in the five books, Musashi states that you will be able to defeat ten men as easily as you could defeat one, and asks: "When you have reached this point, will it not mean that you are invincible?"

The strategies listed in this discipline or book relate to situations requiring different weapons and tactics, such as indoor weapons. Musashi states that the use of glaive-like naginata and spears are purely for the field, whereas the longsword and accompanying short-sword can be used in most environments, such as on horseback or in fierce battle.

Musashi also remarks on the gun as having no equal on the battlefield, until swords clash, when it becomes useless. However, Musashi also notes that the gun is somewhat lesser than the bow; in the 17th century, the gap in reloading speeds between skilled archers and skilled gunmen posed a considerable disadvantage to the latter, beyond the disadvantage of being unable to see a bullet and adjust aim as one would with a bow, nor were firearms very accurate at ranges any longer than point-blank.

One of the principles of the Niten Ichi-ryū is that one should be versed in many weaponry skills. Musashi indicates that during battle you should not overuse one weapon—this is as bad as using the weapon poorly since it becomes easy for an enemy to find a weakness in your style after countless uses of the same weapon.

Timing, as explained by Musashi, is the core principle in strategy which is listed in the Earth Book. The idea of timing as explained within the Earth book is that you must be able to adapt your strategy to timing with your skill, in that you must know when to attack and when not to attack.

In The Book of Five Rings he writes on timing:

"Timing is important in dancing and pipe or string music, for they are in rhythm only if timing is good. Timing and rhythm are also involved in the military arts, shooting bows and guns, and riding horses. In all skills and abilities there is timing.... There is timing in the whole life of the warrior, in his thriving and declining, in his harmony and discord. Similarly, there is timing in the Way of the merchant, in the rise and fall of capital. All things entail rising and falling timing. You must be able to discern this. In strategy there are various timing considerations. From the outset you must know the applicable timing and the inapplicable timing, and from among the large and small things and the fast and slow timings find the relevant timing, first seeing the distance timing and the background timing. This is the main thing in strategy. It is especially important to know the background timing, otherwise your strategy will become uncertain."

The Book of Water

The water book concerns strategy, but it also includes various other factors which perhaps a warrior reading the book should take into consideration, such as spirituality, religion, and one's outlook on life. The meaning of water in relation to life is flexibility. Water demonstrates natural flexibility as it changes to conform with the boundaries which contain it, seeking the most efficient and productive path. So also should one possess the ability to change in accordance with one’s own situation to easily shift between disciplines, methods, and options when presented with new information. A person should master many aspects of life allowing them to possess both balance and flexibility.

The spiritual bearing in strategy, which Musashi writes about concerns your temperament and spirituality whilst in the midst of, or in formulation of a battle. Being a buddhist, most of what is written in the section concerning spirituality refers to principles of calmness, tranquility and spiritual balance;

In strategy your spiritual bearing must not be any different from normal. Both in fighting and in everyday life you should be determined though calm.

This balance refers to what could be thought of as yin and yang within yourself. The over-familiarity or over-use of one weapon is discouraged by Musashi, as it would be seen to reveal your spirituality to your enemy. The idea is that a perfectly balanced spirit is also a perfectly balanced physical presence, and neither creates weakness nor reveals it to your enemy.

During battle, the spirituality and balance is something of which Musashi notes that you should take advantage. Since small people know the spirituality of big people, they can thus note differences and weaknesses between each other. This is something which seems easy, but it is said to change when you are on the battlefield, as then you must know to both adjust your spiritual balance according to what is around you, and to perceive the balance of those around you to take advantage accordingly.

Just as your spirit should be balanced, your various techniques be honed to a perfectly balanced demeanor. In terms of stance, much like balance within the trooper, Musashi notes that stance is an important part of strategy, or battle: Adopt a stance with the head erect, neither hanging down, nor looking up, nor twisted. This is part of what Musashi notes as wedging in.

In regards to the gaze of someone, he notes that a person must be able to perceive that which is all around him without moving their eyeballs noticeably, which is said to be a skill which takes an enormous amount of practice to perfect. He notes that this is again one of the most important parts of strategy, as well as being able to see things which are close to you, such as the technique of an enemy. It is also used to perceive things far away, such as arriving troops or enemies, as that is the precursor to battle. You can then change your actions according to what you see.

Attitudes of swordsmanship

1. Upper
2. Middle
3. Lower
4. Right Side
5. Left Side

The five attitudes of swordsmanship are referred to as the five classifications of areas for attack on the human body. These are areas which are noted for their advantages when striking at an enemy, and the strategist is said to think of them when in situations where, for any reason, you should not be able to strike them. Then his mind should adjust accordingly.

Your attitude should be large or small according to the situation. Upper, Lower and Middle attitudes are decisive. Left Side and Right Side attitudes are fluid. Left and Right attitudes should be used if there is an obstruction overhead or to one side. The decision to use Left or Right depends on the place.

As each is thought of as an attitude, it could be thought of that Musashi means to practice with each "attitude" so that you do not become over-reliant upon one, something which Musashi repeatedly notes as being worse than bad technique.

"No Attitude" refers to those strategists who do not go with the use of the "Five Attitudes" and prefer to simply go without the attitudes of the long sword to focus entirely on technique, as opposed to focusing on both technique and the five attitudes. This is similar to taking chances as opposed to making chances.

The attitude of "Existing - Non Existing", mixes the Five Attitudes with the Attitude of "No Attitude", meaning that the user of the longsword uses the techniques and principles of both at whichever moment he or she finds most opportune.

"In-One Timing" refers to the technique of biding your time until you can find a suitable gap in the enemies' defense, to which you will deliver one fatal blow to the enemy. Although this is said to be difficult, Musashi notes that masters of this technique are usually masters of the five attitudes because they must be perceptive of weaknesses. It is rumored that Musashi disgraced a former sword master by using such a technique with a Bokken, but there are no descriptions mentioning "In one" timing.^{[citation needed]}

"Abdomen Timing of Two" refers to feinting an attack, then striking an enemy as they are retreating from the attack, hitting them in the abdomen with the correct timing of either two moves or two seconds. Although the technique seems relatively simple, Musashi lists this as one of the hardest techniques to time correctly.

"No Design, No Conception" refers to When word and actions are spontaneously the same. Aside from this philosophical approach to the meaning, the technique is relatively simple to explain: if you are in a deadlock with the enemy, using the force from the cut, you push with your body and use the disciplines outlined in the Void Book to knock the enemy over.

This is the most important method of hitting. It is often used. You must train hard to understand it.

"Flowing Water Cut" technique refers to if you come into a fight with an enemy of a similar level to you in swordsmanship. When attacking fast, Musashi notes that you will always be at stalemate, so like Stagnant water, you must cut as slowly as possible with your long sword. At the beginning of this technique you and your opponent will be searching for an opening within each other's defense. When your opponent either tries to push off your sword, or to hasten back as to disengage it, you must first expand your whole body and your mind. By moving your body first and then that of your sword, you will be able to strike powerfully and broadly with a movement that seems to reflect the natural flow of water. Ease and confidence will be attained when this technique is continuously practiced upon.

"Continuous Cut" refers to when you are again faced with stalemate within a duel, where your swords are clasped together. In one motion, when your sword springs away from theirs, Musashi says to use a continuous motion to slash their head, body, and legs.

"Fire and Stone's Cut" refers to when your swords clash together. Without raising your sword, you cut as strongly as possible. This means cutting quickly with hands, body, and legs.

"Red Leaves Cut" refers to knocking down the enemy's long sword in the spirit of the "No Design, No Conception" cut.^{[citation needed]}

The Book of Fire

The Fire Book refers to fighting methods unlike the specific fighting techniques listed in the Water Book. It goes into a broader scope in terms of hints as to assess a situation, as well as specific situational instructions.

He notes obvious advantages of armor and preparedness before a duel or battle as it applies to one man or a whole group of men:

As one man can defeat ten men, so can one thousand men defeat ten thousand. However, you can become a master of strategy by training alone with a sword, so that you can understand the enemy's stratagems, his strength and resources, and come to appreciate how to apply strategy to beat ten thousand enemies.

The dependence of location according to the Go Rin No Sho is crucial. You must be in a place where man-made objects such as buildings, towers, castles, and such do not obstruct your view, as well as facing or standing in a position where the sun or moon does not affect your vision. This is purely so that your vision is focused on nothing but the enemy, and thus there is more concentration upon the enemy's stratagems. Musashi also seems to note the age old strategy of the High Ground:

You must look down on the enemy, and take up your attitude on slightly higher places.

Other kinds of tactics which of Musashi tells are way of ensuring that the enemy is at a disadvantage. Forcing yourself on the non-dominant side of a trooper is one way because the left side is difficult for a right-handed soldier. Other disadvantages, such as forcing enemies into footholds, swamps, ditches, and other difficult terrain, force the enemy to be uncertain of his situation.

These things cannot be clearly explained in words. You must research what is written here. In these three ways of forestalling, you must judge the situation. This does not mean that you always attack first; but if the enemy attacks first you can lead him around. In strategy, you have effectively won when you forestall the enemy, so you must train well to attain this.

Ken No Sen (Attacking) is the most obvious method of forestalling an enemy because a head on collision forces both parties to a standstill. Although it is not mentioned, Musashi must have been well aware that this method would also be the most likely to have a higher death count than the others due to the sheer mass of enemies because more than one enemy could then attack a single soldier or trooper.

As the name suggests, Tai No Sen (Waiting for the Initiative) is invented for very opportunistic and decided battles between parties. The main idea being to feign weakness as to open a weak spot, or Achilles' heel, in the opposing force, and then regrouping to exploit such a hole by attacking deep within the enemy's party. Although it is not mentioned, this would most likely be to kill the officer of the highest rank as an attempt to remove the tactical centre of a group of soldiers. A method particularly useful for Musashi or others, if attacking a general directly would signal the end of the battle upon his defeat.

Only a small amount of text is written about Tai Tai No Sen (Accompanying and Forestalling). Albeit very confusing, the idea of Tai Tai No Sen is circumventing an ambush or quick attack from the enemy by taking the initiative and attacking in full force. Musashi admits himself that this is a difficult thing to explain.

Although there are other methods, they are mostly situational methods relating to the crossing of rough terrain, and battling within such rough terrain. Although it spreads over two or more paragraphs, most information is common sense, relating to caution and avoidance of such situations.

The idea of timing, as with singular battles, is known as the most important part of attacking next to the skill of participants. However, the type of timing in this instance is somewhat different from the timing noted in The Ground Book since this variety of timing requires looking at the various physical factors which affect an enemy during battle, such as determining if strength is waning or rising within a group of troopers.

The idea of treading down the sword is a very simple technique. Squashing an enemy's attack before it starts by using a form of charging and then attacking under the veil of gunpowder smoke, and arrow fire, the initial attacks used when starting battles can be highly effective. Individually, it refers to attacking the enemy's sword, breaking it, removing it from play, and a technique of controlling it through direct blade on blade contact.

Like Musashi mentions in his philosophical style, there is a cause for a collapse. As there is collapse within an enemy, such as waning in his numbers, Musashi notes that one must observe such events and use them to his advantage.

Interestingly, he notes that an enemy's formation can fall if they lose rhythm. It was known that in such battles, drummers drummed a tune for their other fellow soldiers to march to; and, if the rhythm was lost, it led to a "collapse when their rhythm becomes deranged".

The Book of Wind

Whereas most of the information given in the previous books is useful in such a way that it could still be applicable today, this book is primarily concerned with the specific details about other strategies that existed at the time. The broader lesson from this book is that an important part of understanding your own way is to understand the way of your opponent as precisely as possible.

Musashi notes that although most schools have secret and ancient strategies, most forms are derivative of other martial arts. Their similarities and differences evolved through situational factors, such as indoor or outdoor dueling, and the style adapted to the school. He indicates that his appraisal may be one sided because the only school he had interest for was his own, and, in a way, he does not see parallels to his own creation and work. However, he still admits that without basic understanding of these alternate techniques, you will not be able to learn Ni Ten Ichi Ryu, probably for reasons of finding the wrongs in other techniques, and righting them within yourself in Ni Ten Ichi Ryu.

The main difference that Musashi notes between the Ichi School and other strategists and schools is that other schools do not teach the "broader" meaning of strategy. There is a strategy above sword-fencing: "Some of the world's strategists are concerned only with sword-fencing, and limit their training to flourishing the long sword and carriage of the body." The book has many paragraphs on the subject of other schools' techniques, and much of the text lists the ways that other schools do not conform to the ideals which he himself writes about in the Book of Five Rings, such as footwork, sight, and over-reliance or over-familiarity with a weapon.

The Book of Void

Although short, the void book lists, philosophically, the nature of both human knowledge and other things. The void book expressly deals with "That which cannot be seen".

"By knowing things that exist, you can know that which does not exist."

The Book of Nothing, according to Musashi, is the true meaning of the strategy of Ni Ten Ichi Ryu. It seems very esoteric in nature because he emphasizes that you must learn to perceive that which you cannot understand or comprehend. He notes that in this Void, what can be comprehended are things which we do and see, such as the way of the warrior, martial arts, and Ni Ten Ichi Ryu. At the same time, in the Void, things we do not do or see (which he calls Spirit) are part of the information which we perceive on a conscious level, but with which we have no physical relationship. It is arguable whether Musashi is referring to religious spirituality or if he is actually explaining a way to live a life and to process thoughts.

"In the void is virtue, and no evil. Wisdom has existence, principle has existence, the Way has existence, spirit is nothingness."

In the above quote, Musashi speaks of "virtue and no evil". This may mean "goodness and banishment of evil" or "purpose and non-existence of good and evil", and the exact meaning is open to debate.

Philosophical methods

Crimson-Leaves Strike

With this method, you will cause your adversary's sword to drop through a strike from your sword, then bring yourself immediately back to a readiness to strike. This method is combined with The Strike of Nonthought, in which you will always strike with true force by swinging your sword toward the ground when your opponent's sword is about to drop.

Autumn Monkey's Body

With this method, you are to start off by assuming a posture in which you are not to use your hands. You are to think of getting your body close to your opponent before striking him. However, if you think of reaching out both of your hands, your body will remain distant. This is why you must always think of quickly getting your body close to the enemy. When you are distant, you will exchange blows of the sword, and it will be rather easy to move closer to your opponent (Thomas Cleary translates this technique as "Body of the Short-Armed Monkey".)

Blow Like a Spark from a Stone

If you are currently within a situation in which you and your opponent's swords are to clash, you must strike extremely hard without raising your sword to any extent. This is The Blow Like a Spark from a Stone technique. If you are to perform this technique, you must first strike quickly with the three combined forces of your legs, your hands, and your body. This blow will be rather difficult to perform if you do not train it at frequent times. If you diligently train yourself, you will be able to increase the overall force of the technique's impact.

Body of Lacquer and Paste

With this technique, one's objective is to get close to the opponent and stick to him. When one is to do this, one must first behave as though one had been strongly glued to him with one's feet, head, and body. It is generally known that during combat, most fighters will have a tendency to have their body hang back while their heads and feet are extended forward. One must attempt to paste one's body against the opponent's without leaving any area in which the bodies are not touching.

Chance-Opening Blow

When you first start off by striking, your opponent will try to parry by hitting or by blocking your sword. At this point in time, you need to completely equip yourself into the action of striking with your sword, and strike whenever you may see an opening, whether it may be the legs, arms, or head. Following the single way of the sword and performing a strike such as this is known as the Chance-Opening Blow. This technique will be useful at moment while fighting, so it should be trained regularly.

Strike of Non-Thought

You should always make your mind into a mind that is striking, and your body into a body that is striking when you and your adversary are about to launch an attack. If this method is followed, your hand will attain movement through emptiness, with speed and power, without taking note of any point in which movement had begun.

See also

Notes

References and further reading

• The Book of Five Rings: a graphic novel, by writer Sean Michael Wilson and Japanese artist Chie Kutsuwada, 2012, Shambhala Publications, Boston, USA. A graphic novel version of The Book of Five Rings, based on the translations of William Scott Wilson. With evocative drawings and a distilled but faithful text adapted by acclaimed manga writer Sean Michael Wilson, the illustrated version helps bring alive this guide to swordsmanship and Musashi’s world.

External links

• Information on understanding Go Rin No Sho by Imai Masayuki Nobukatsu, 10th sōke of Hyōhō Niten Ichi-ryū
• A complete English translation of "Go Rin No Sho" (The Book of Five Rings)
• Summary of the book