The Concept of REI within Funakoshi's Niju Kun
by Mike Russell 4th Dan S.K.I.F.
Funakoshi Gichin, in order to exhort his students and to affirm the true spirit of Karate, developed his 20 precepts as a written legacy to help his students adhere to the true spirit of Karate Do. It is a deeply spiritual set of maxims but it would take too long to delve deeply into the Spiritual Aspects here. Suffice to say that the reader should bear in mind that there is something spiritual which pervades the Niju Kun.

Every Karateka will have a favourite saying from one of these 20 precepts and I am no exception. The twelfth is mine as it took on a personal meaning for me when I was diagnosed with Cancer in 2003.

"Do not think about winning, think rather that you do not have to lose"


It is this precept that will form the basis for this thesis however, I have found that it is impossible to discuss just one aspect of the Niju Kun without referring to the other 19 so:

The First Precept;

Karate begins with rei and ends with rei

Or, in Western terminology, Begins with courtesy and ends with courtesy. Rei however, is not just about courtesy it signifies respect and understanding as well as courtesy and there is also interaction. Rei cannot just be given. It must be received as well if it is to mean anything. It is a two-way communication of courtesy, understanding, respect and, as a result, it is a shared experience. It signifies an acceptance of one's position within the Karate Hierarchy. Most Western Karateka will see the "Rei" as merely a bow and many translations of the Niju Kun misinterpret this precept as such however; a true practitioner of traditional Karate will see it as much more. A Giving and Receiving of spirit. A mutual understanding of the fact that inside a Dojo, we share a life and death struggle every day. The "Rei" shows us that we understand that we may not win every fight but that doesn't mean we will lose every fight.

The Second Precept;

There is no first attack in Karate


Probably the most famous of the 20 precepts as it is carved into the Memorial Shrine of Master Funakoshi at the Engaku-Ji temple in Kamakura. Having seen this shrine for myself, these words are carved indelibly behind my eyes and this is, in my opinion, what Funakoshi wanted. That Karate is a defensive Art; there is no doubt. It is this that elevates Karate from merely a fight ing method to a "Do" or way of life. Students, from their first lesson, are taught that the techniques of Karate can be dangerous unless we practise sincerely and use them for defending ourselves only. If used to attack first, Karate is barbaric. In Attacking first, the person who uses Karate may do damage but, they have already lost because they have no idea of the beauty of Karate but, an awareness of the Spirit of Courtesy ("Rei") and using the skills for defence only, shows that the Karateka has not, nor never will, lose. In attacking first, that person has already lost the meaning of the Art.

The Third Precept;

Karate is an aid to Justice


I do not think that Funakoshi meant to forge a team of "boy scouts" seeking to do good deeds and go about looking to right any wrongs that they see. He did however, seek to use Karate Do to instil in its practitioners a sense of what is right. This sense is manifest in how we interact with each other within and without the Dojo. The "justice" in this sense is allowing others to maintain at all times, their dignity. Rei allows us to give each person the dignity to go about their lives. It also allows us to maintain our dignity inside and outside of the Dojo. Whenever Karateka meet, there may be arguments about the execution of technique or some other aspect of karate but, using Rei, these arguments are often constructive and enrich the training experience for both. This brings us naturally to the next Precept.

The Fourth Precept;

First know yourself, then you can know others


This precept is one of the most famous Oriental strategies as it is a quote from Sun Tzu's The Art of War. Funakoshi intended that Karateka should seek to discover their own heart, their own strengths and weaknesses before they sought to know the weaknesses or strengths of others. Again, this precept is about dignity. If you can maintain your Dignity and allow others to maintain theirs, this is the true spirit of Rei. As we interact with our fellow students, we come to know each other's Karate, probably before we come to know our own. It is easy for us to spot the mistake in someone else's technique before we realise our own mistakes. This precept exhorts us to look for our own mistakes before we attempt to correct the mistakes of others, thus maintaining the spirit of Rei.

The Fifth, Sixth and Seventh Precepts;

Spirit First, Technique Second
Be Prepared to release your Mind
Accidents arise out of Laziness


These three precepts naturally go together as they are maxims designed to urge the Karateka to strive to become better. These precepts urge us as individuals, to use Rei personally. We should forge good spirit, be open to new ideas and not become lazy in our training. This is about fostering the internal spirit of Rei. In other words, we should respect ourselves and strive to become better in our training then, after achieving some success in this way; we can then earn the respect and courtesy of our fellow students.

The Eighth, Ninth and Tenth Precepts;

Karate is not just for the Dojo
Karate is a Lifelong pursuit
Apply the way of Karate to all things, therein lies its beauty


Again, these three Precepts naturally encourage us to look at Karate as more than just an exercise. By training as often as we can, striving to better ourselves and maintain a spirit of Dignity and Rei, we find that Karate can be applied to our everyday living. We begin to see that Karate can be used to assist us in our lives outwith the Dojo. It can, as students advance through the Grades, take on greater meaning for us outside the Dojo however, it is the Spirit of Rei that allows us to "see the karate" in all things. By this, I mean that we see certain situations, certain actions that would not be out of place inside a Dojo. With a Spirit of Courtesy and Dignity, we recognise these situations and conduct ourselves in a respectful manner accordingly.

The Eleventh Precept;

Karate is like a Kettle. You must heat it constantly or it will cool

Kanazawa Kancho once said that if you know 80% of Karate but forget 1%, then all Karate is Lost. This Precept, Like Kancho's words encourage us to keep training. Many Western Karateka do not, because of cultural differences and cultural experiences have any knowledge of the concept of Rei except within the Dojo. As we found out in the previous Precepts, the Spirit of Rei is fostered by the desire to keep training. If we, as Karateka stop training, not only could our Karate be lost but the Spirit of Rei could be diminished as well. Thus leaving the entire world a darker place.

The Twelfth Precept;

Do not think about winning; think rather that you do not have to lose

Upon receiving a diagnosis of Cancer, Doctors usually refer to the process of treatment and recovery as a battle. A personal battle against cancer, which is essentially a battle against yourself. Doctors tend to like you to see Cancer as a tangible entity that can be fought and, in today's climate of Medical advances, often beaten. My own Consultant told me that I had a good chance of Victory over Cancer however, as a Karateka, I preferred to look at it in terms of this Precept. I might not win the Battle against Cancer but I certainly don't have to lose it.
It was this precept and the Concept of Rei that allowed me to keep my dignity all through the treatment and recovery process. Indeed, it was the spirit of Rei that allowed me my dignity from my fellow Students as I began to slowly take my first steps back into the Dojo and along the Way of karate again after treatment. I was allowed to start again at my pace, with little comment or suggestion just respect and dignity maintained in a spirit of Rei.

The Thirteenth Precept;

Move according to your Opponent

This Precept brings us to probably the most important aspect of Rei. This aspect is Harmony. It is the spirit of Rei that brings about a sense of harmony. Firstly with ourselves. In conducting ourselves as dignified humans, we begin to harmonise our actions to create an area of peace in which we live and act. In this Precept, we are encouraged to Harmonise with our opponent. Once we have advanced sufficiently to harmonise with ourselves, we can then harmonise our movements and even our breathing with our opponents. In this way, we interact in a spirit of respect and dignity which allows us to take control of any situation without removing the others dignity. This is the Spirit and indeed the heart, of Rei. It is this Harmony that allows us to interact with others in a Spirit of Courtesy, respect and Dignity.

The Fourteenth Precept;

Victory depends on your ability to tell Invulnerable Points from Vulnerable points

As any Karateka knows, during Kumite, the vulnerable points that a Karateka presents to their opponent can change to invulnerable ones in a split second. Funakoshi Sensei knew this and wanted his Students to be able to tell the difference. In the Spirit of Rei, your opportunity to gain Victory does not just lie in the ability to tell which points to attack. It relies on the ability to harmonise your movements until you are able to turn invulnerable points into vulnerable ones. Thus Rei is the key to victory. In Kumite, the spirit of Rei allows you to respect your opponent; it allows you to give and receive dignity and allows you to harmonise with your opponent to turn the fight to your advantage. If you are not concerned with victory, as in the spirit of Rei, you shouldn't be concerned, then victory will present its opportunity. In a Spirit of respect and understanding. It is then up to you to decide whether to seize victory or not.

The Fifteenth Precept;

Think of your hands and feet as Swords

If you hold in you the spirit of Rei, this Maxim takes on a better meaning, for the warrior never unsheathes his weapons unless there is a good reason for doing so. If you have forged your hands and feet along the way of Karate, you will be reluctant to use those weapons. Thus, the spirit of Rei shows you to respect the Art that you practise and respect the weapons that you have.

The Sixteenth Precept;

When you leave home, think that there is a multitude of opponents waiting for you

As with the fifteenth Precept, your Spirit of Rei will teach you to respect others with the same sense of respect as you would treat the weapons of Karate Do. You should guard your weapons and the use of such weapons against others closely. Your sense of respect and the dignity with which you conduct yourself will show others that it is foolish to try to attack. With a Spirit of Rei, the way in which you conduct yourself will also change. Others will respond to you in a positive way as you give a sense of dignity and respect. Your ability to harmonise with yourself will enhance your self-respect and your ability to harmonise with others will enhance your respect for others. This, above all will show others that there is no point in attacking.

The Seventeenth and Eighteenth Precepts;

Ready Position for beginners, Natural Positions for the Advanced
Kata is one thing, Engaging in combat is entirely another


These Maxims tell us that we must begin with correct posture and technique and that when practising Kata, we must bear in mind that actual combat is often very different. The same goes for the concept of Rei. Respect must be earned if it is to mean anything. If you are disrespectful as a beginner, then you may be allowed your dignity but, you will not receive any respect in return. This shows too that Rei is an interactive concept. Also that in Kata, where you practise the fighting sequences alone, it cannot prepare you entirely for Kumite. As I have said, this interaction of Karateka, in a Spirit of Rei must be experienced in order for the Student to progress.

The Nineteenth Precept;

Do not forget:
Strength and weakness of power
Expansion and contraction of the body
The speed and slowness of techniques


This Precept epitomises the Karate ideology both in technical and spiritual matters. Karate, like most aspects of life in general can be thought of in terms of threes. This precept naturally splits into three levels. The concept of "three" is a natural one and one which crops up in Karate often. The Kyu Grades seem to progress in threes. The first three grades are the most basic, the second three begin to advance towards the last three brown belts and the last three prepare the Karateka for the "First Step" of Shodan. Life itself mirrors this concept. We refer to the human condition in terms of mind, body and Spirit. The Harmonisation of "Self" with "Nature" and the "Universe".

Karate itself can be broken down into 3 principles. This is what Funakoshi alluded to in this precept. Speed, Power and Technique. Rei also can be thought of in this way. Dignity, Respect and Courtesy.

The Twentieth Precept;

Always think and devise ways to live the precepts every day

This final exhortation places the spirit of Karate Do first and foremost in the mind of its practitioners. By living the Precepts every day, the Spirit of Rei becomes part of our human nature. As we have discovered, when we live the Precepts every day, Karate begins and Ends with Courtesy, Respect and Dignity…. Rei.

In Conclusion:

The Concept of Rei is a complex and varied subject. Like Karate itself, It cannot be known in it's entirety. It takes a lifetime to come to understand. The Spiritual aspects of Rei are varied and it should permeate the Soul of every Karateka. It should, infuse our training with an air of Dignity and respect and should enhance the Training experience with a sense of trust in our own abilities and in the abilities of our fellow students.

Karate, like most aspects of life in general can be thought of in terms of threes. Rei also, can be seen to be in 3 parts: (although this is, by no means, an exclusive list.) Courtesy, Dignity and Respect which, like respect in itself, should be earned before it means anything. It is an Interaction between an individual and the rest of humanity but most notably between Karateka. It is a means to develop the mind as well as the body and is the means to developing Harmony with ones-self, others and ultimately, the Universe.

Rei, within the Dojo signifies an acceptance of your position within the Hierarchy of Karate. A giving and receiving of respect from both your Juniors (Kohei) and your Seniors (Sempai).

Rei must be practised daily just as we must respect ourselves. Without this constant use, Rei diminishes and as such, so will our Karate. If we have little self-respect, we cannot expect others to respect us. We must therefore practise Rei for ourselves before we interact with others.

Rei permeates the very fabric of Karate Do. Without it, Karate Degenerates into a form of violent barbarism but, with Rei, Karate develops the character of the participants into balanced individuals who can take their place in a useful, polite and Just society.

The Niju Kun is not just a series of Maxims that the Karateka should strive to live by. They give insight into how we, as Karateka should conduct ourselves as well as how we should look at our Art and the world around us. In effect, Just as Funakoshi hoped when he wrote the precepts for his followers, Rei, is the cornerstone that Karate Do is built upon. Karate Begins with Rei and Ends with Rei just as Life should begin with Rei and end with Rei.



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