The Myth of Chiburi

Chiburi, or "flinging off the blood" is a signature movement in Iaido kata. What does it really mean and what is it for?

Below is an excerpt from a post that appeared at Kenshi247, where the author explores this questions. The full post may be read here.

In many iaido ryuha, chiburi is a fundamental part of kata. Chiburi, usually written 血振 in Japanese, literally means “shaking off blood,” and the image presented is that of flinging the blood of a defeated enemy off the blade with a deft movement before resheathing. Perhaps mainly due to the prevalence of Muso Shinden-ryu and Muso Jikiden Eishin-ryu, some people believe that chiburi is a universal aspect of iai. However, many ryuha do not practice chiburi, and there is the opinion – which has become more widespread recently, thanks to the sharing of knowledge via the internet – that shaking off blood in this way is in fact impossible. If this is the case, then what purpose does chiburi serve? Is it pointless? Why do some ryuha practice it? And was it really ever intended to remove blood from a blade?

Chiburi is a modern reading of a word that appears in the densho of Eishin-ryu as either 血振 or 血震. The original pronunciation is most likely chiburui, which is the reading you find if you look the word up in a Japanese dictionary such as Iwanami Shoten’s Kojien. In his book Koryu Iai no Hondo, the late Iwata Norikazu quotes another Eishin-ryu teacher, Morita Tadahiko, as being correct in his assertion that “chiburui” is the accurate term and that “chiburi” is in fact a mistaken reading (the word “chiburi” that appears in the dictionary actually refers a method of preparing fish). Iwata sensei also notes that both Oe Masamichi and his own teacher, Mori Shigeki, referred to the motion as “chiburui.” However, for the purposes of this article I will use the term “chiburi” as that is what most people are familiar with, and for better or worse it has become common parlance in most iai circles.

Most beginners learning iaido will be taught that the motion of chiburi is intended to fling the blood from the tip of the sword after cutting. In most books on iaido too, chiburi is described as serving this purpose. Muso Jikiden Eishin-ryu and Muso Shinden-ryu also contain chinugui (wiping the blood from the blade with a cloth, paper or the fingers) in a small number of techniques in the first teaching level of Omori-ryu (Shoden/Seiza no bu). In Muso Jikiden Eishin-ryu at least, this is technically done by putting one hand inside one’s hakama and using that to wipe the blade. In practice however, the shape is performed but the blade is not really wiped on the hakama. According to Mori Shigeki, this is because this because the oil used on swords in Oe sensei’s day would soil the clothes.

Despite more people becoming aware of it recently, the idea that chiburi isn’t really a practical method of removing blood from the blade is not recent – it has been expressed by teachers in Japan for a long time. Kono Hyakuren, 20th soke of Muso Jikiden Eishin-ryu, wrote in his book Iaido Shintei:

“Chiburui: this takes the form of shaking blood off your sword and onto the ground.

However in my experience, when cutting with a sword very little blood actually gets stuck to the blade. Nevertheless, placing emphasis on zanshin and spirit through the form of chiburui makes it a useful tool for development.”

Kono sensei was not alone in his understanding of chiburi primarily as a method of developing zanshin. Nakayama Hakudo wrote:

“In batto, chiburi is always performed in each kata before sheathing the sword. This motion cannot clean blood from the blade completely, but it should be thought of as a purifying action. The period between chiburi and noto is very important in battojutsu, as it is a manifestation of zanshin in the kata. Every school of iaido has a different set method of performing this action. A few peculiar methods are as follows:

“In Kanshin-ryu, a piece of paper kept inside the kimono (kaishi, 懐紙) is used to wipe the blade clean.

“In [Shindo] Munen-ryu, the sword is pointed downwards so the blood drips off the tip.

The sword is then brought around in an arc to the left side of the body, thus flicking the blood off the blade.

“In Hazama-ryu, the sword is rested on the left shoulder, and the blood wiped off onto the shoulder.

“In Fuchishin-ryu, the sword is pinched between thumb and forefinger, which are drawn from the base of the blade to the tip to wipe off the blood.

“In Hayashizaki Hon-ryu, the sword is held in the right hand and first brought in a small motion to the left, then in a large motion to the right before sheathing.

“Other schools such as Omori-ryu, Kikusui-ryu, Kaishi-ryu, Tamiya-ryu, Shingan-ryu,

Tetchu-ryu, Hasegawa-ryu and so on also all perform chiburi differently. In addition, there are schools that do not perform chiburi at all. Some schools will discard the saya behind them after drawing the sword, showing the determination of the swordsman as he instills his entire being into the sword. Discarding the saya expresses the swordsman’s preparedness to die in combat (sutemi, 捨身) – once the sword is drawn, it will not be returned to the sheath. In Kyoto, I saw a man perform this kind of chiburi under the title of ‘Takayama-ryu.’ However, I look upon this as an exception to the general rule.”

 Here Nakayama sensei asserts that while not all schools practice what we would today term chiburi, all seem to have an emphasis on zanshin before resheathing, which in many schools is manifested in the simulated or actual cleaning of the blade. Schools of iai that perform chiburi largely seem to be from the Hayashizaki family of ryuha, such as Tamiya-ryu, Mugai-ryu, Suio-ryu and Shinmuso Hayashizaki-ryu. In schools that are not descended from Hayashizaki we often find other forms of cleaning the blade. A form that does not seem to appear in Hayashizaki-derived schools is kaiten chiburi, where the sword is spun in the hand and the tsuka struck. This can be seen in venerable ryuha such as Tenshin Shoden Katori Shinto-ryu, Kashima Shinto-ryu and some lines of Takenouchi-ryu. 

Other non-Hayashizaki schools, such as Seigo-ryu/Shinkage-ryu, Hoki-ryu, Sosuishi-ryu, Tatsumi-ryu and so on may completely omit chiburi, opting instead for chinugui or, to an outside observer such as myself, apparently nothing at all. Of course third-party observation can only take us so far – for example, discussions with an experienced practitioner of Hoki-ryu revealed that while the school may seem not to have any blade-cleaning portions of its kata, chinugui motions are actually concealed in the noto itself. Despite the numerous differences between ryuha, however, I have yet to encounter a school that does not display clear zanshin – whether expressed during the act of cleaning the sword or otherwise – before sheathing the weapon.