What is the difference between munen and mushin? These concepts outline the ideal mental state for the bushi, or warrior of Japan. Attaining either munen or mushin is not overly complicated, yet it can be a difficult subject to discuss. Mushin is integral to the physical acts, tactics, and strategies of bugei. Munen muso is a larger concept for the development of the bugeisha.

Allow me to offer my non-scholarly breakdown of these words. Mu 無 means nothing. I don't want to get into an Abbott and Costello routine here, but yes mu doesn't mean anything.
"What does mu mean?"
"Nothing!"
"It has to mean something, Abbott."
"It means nothing, Lou!"
Mu once had its meaning in the pictograph for destroying a forest. But its early writing also showed what was possibly a priest giving some sacred dancing and holy rites for a fallen person. Death representing the nothingness. The emptiness and space, rather than the absence of something is a metaphor for what the open and unobstructed mind of munen and mushin represent.
Munen Muso

Nen 念 is a word meaning thought in the vein of a desire or a thirst for something. We can get a very Buddhist construct when we put mu and nen together. Munen deals with the idea of having no sensual desire or worldly thoughts. No desire to be nor a wish not to be. No desire to satiate our many thirsts of the eye, nose, mouth, skin, etc. Munen is an ultimate state of mind where one is not being pulled in the directions lead by our desires. Munen muso becomes a phrase meaning no desire and no thought. The mind is in a quite advanced enlightened stage with munen. This type of stage is something cultivated over longer periods of time. It is quite different from mushin. It might be helpful to consider munen as the larger aspect of 'no-thought'.
The phrase, no-mind or no-thought is attributed to the samurai warriors and Buddhist monks of Japan. Munen-muso is not exactly a battle friendly state of mind. A mind imbued with munen is unrestricted by the fetters of ignorance, anger, fear, belief in the self, desire for existence and non-existence, and sense desires, to name some.
TAKE IT TO HEART

Shin 心 means mind or spirit. Our mental faculties are represented by shin. Through meditation and contemplation, we can cultivate certain states of mind that lead to mushin no shin. The state of no-mind is the mind free from calculating and clinging. This is the functioning state of mind that leads to munen. It is mushin that is useful to the warrior directly involved in combat or the martial artist. It is a neurologically opened state where there is no scheming or planning. Some of us have experienced this when we knock something off the table and without thinking we catch it. The state of mushin is a very natural part of our lives. It is not a mystical or unattainable state of mind. If you have ever "lost yourself" in playing a musical instrument or singing, or chanting then you have achieved the mushin. If you have ever experienced that open flowing moment while playing baseball, jogging, or even mowing the lawn, then you have achieved mushin.
Mushin is different from munen. You can be a person full of greed and anger for example but still attain mushin. Mushin is a temporary state. Munen is a state of mind that undergoes a permanent transformation. When someone rids themselves of greed, they have understood its origins, and its how it arises. When it is understood and triumphed greed does not return. Mushin can be achieved by anyone, however, munen requires a lot of work and many years of practice. Munen is the ultimate goal.
During bujutsu keiko or martial arts training mushin is something achieved naturally when the practitioner has attained enough general movement memory to perform techniques without forethought. In arts like kenjutsu, the student is pushed into dealing with the sword of uchidachi, therefore mushin can be triggered somewhat more profoundly sooner than the solo art of iaijutsu. The absence of conscious planning and scheming is where mushin blossoms. Letting go of ego-driven inner dialogue and planning will allow the state of no-mind to flourish. It is why reaction times seem so fast. We have the somatic aspect of speed, how quickly limbs can move based on the condition of our ligaments, tendons, and muscles, but we also have the speed potential at which those limbs can react. Mushin opens the neurological latent speed by bypassing 'us'. The 'I am going to do this or that' part of us. It just isn't needed, and in mushin, it isn't there. That is why its so valuable to the warrior or martial artist. It is a more or less pure reaction, an open stream of light through a window. It doesn't pass a filter, the sunlight just shines onto the floor unobstructed and unchanged. We do not have to fiddle with blinds or shades and draw them open to get the sunlight into the room. In mushin, we have removed the shades and filters.
In the end, intellectualizing all of this is a danger and leads no one closer to understanding it. One should not set out to achieve these states explicitly, but to slowly focus and hone one's skills during keiko or shugyo. These states can best be understood by attaining them in our practice.
FAQs Munen and Mushin
1. What are Munen and Mushin, and how do they relate to Japanese warriors?
Answer: Munen and Mushin are concepts that describe the ideal mental states for the bushi, or Japanese warriors. Mushin is integral to the physical acts, tactics, and strategies of bugei, while Munen Muso represents a larger concept for the development of the bugeisha. Both states emphasize the importance of a clear, unobstructed mind in martial arts.
2. How do Munen and Mushin differ in their application and attainment?
Answer: Munen, which translates to "no-thought," is a state of mind where one is free from worldly desires and distractions. It is a more permanent transformation that requires prolonged practice and cultivation. Mushin, on the other hand, is a temporary state of "no-mind," where the mind is free from calculating and clinging. It can be achieved naturally during activities like playing a musical instrument, sports, or even during martial arts training. While Mushin can be attained by anyone, achieving Munen requires dedicated effort and years of practice.
3. Why is Mushin considered valuable for martial artists and warriors?
Answer: Mushin is a state where the mind is free from conscious planning and scheming, allowing for faster and more natural reactions. In this state, the neurological speed is unlocked, bypassing the conscious "I am going to do this or that" thought process. This pure reaction, akin to sunlight shining unobstructed through a window, enhances the reaction times and effectiveness of a warrior or martial artist, making it a highly sought-after state during combat or training.

ラジカスキー真照
館長Saneteru Radzikowski is the head sword instructor of Shinkan-ryū Kenpō. He lives and teaches Iaijutsu and Kenjutsu from Nara, Japan.
Are Combat Skill, Self Defense & Martial Art The Same?
Why make the distinction between martial art and combat skill? I believe that combat skills...
Sword Control
We should not let our mind or body or sword become contorted or controlled by...
Be Thankful.Be Earnest In Bujutsu & Life
Be thankful for your mistakes, failures, and blunders. They are your own teacher reminding you...
Making Excuses In Martial Arts
In the dojo, when I hear a student offer excuses to a teacher, I can...
Too Many Martial Arts
The koryū of Japan are not self-defense arts. Although they can be authentic and certainly...
How To Avoid Training Pitfalls In Martial Arts
Beware The Rabbit Holes. I want to talk about some pitfalls of martial arts training....
Greed And Martial Arts
We must endeavor to cultivate generosity while looking at the roots of our greed. Removing...
Ken Zen Ichi Nyo Sword & Zen Are One
剣禅一如 The sword and zen are one. The mind of zen is an important consideration...
The Old Is Not Distant
This is important to understand when practicing historical or classical martial arts. Although the sword...
You With Sword In Hand, Calm Yourself
The mental issues involved with subscribing to someone you dislike, hate, have anger towards, desire...
How to learn kenjutsu?
How to learn kenjutsu? Learning anything as profound as a martial art needs a teacher....
7 Year Anniversary of Online and In-person Sword Learning
Today marks a significant milestone in our journey — the 7th Anniversary of Shinkan-ryu Kenpo!...
What Value Is In Martial Arts Training?
Someone asked, “What value is there in martial arts training?” I reflected, what do I...
Iaido Tachi & Seiza Waza
Demonstrations of unique iaijutsu and complimentary techniques between standing and sitting.
Jealous Martial Artists
Martial artists should be aware of what can live in the shadow of righteousness; jealousy...
Secrets of Swordsmanship: In-yō. Ying & Yang
I wanted to talk about IN-YŌ 陰陽, or more commonly known as yin & yang....
Practice. Time Is Fleeting
In #budo as well as life, in general, we should avoid wasting time. We need...
Honesty and the Martial Arts Hermit. Being a good budō teacher and student.
When people want to find a martial arts teacher, do they often think of mister...
Sword Grip Tenouchi Iaido Video
This video describes basic hand grips (tenouchi) for using a katana (Japanese sword).
The Sword With Two Edges
Today I decided to write the four kanji compound of morohanotsurugi. In English, we might...
Maai Combative Spacing
Maai 間合い Combative spacing or maai is important to investigate early on and come to...
Mitorigeiko Special Practice
Present and switched on The method of critically watching practice is commonly referred to as...
Estás Involucrado en un Culto de Artes Marciales?
Recientemente tuve una conversación con alguien que se refirió a su escuela como una genuina...
Ken Zen Ichi Nyo Sword & Zen Are One
剣禅一如 The sword and zen are one. The mind of zen is an important consideration...
Attachment, Budo & Impermanence
It is worth a lot to be mindful of the ebb and flow of all...
Honesty and the Martial Arts Hermit. Being a good budō teacher and student.
When people want to find a martial arts teacher, do they often think of mister...
Wisdom Martial Arts Keiko & Buddhism
For those that lack wisdom the way is difficult. It is best to consider the...
Katate Tsuki-One handed Thrust Iaijutsu
[fusion_builder_container hundred_percent="no" equal_height_columns="no" menu_anchor="" hide_on_mobile="small-visibility,medium-visibility,large-visibility" class="" id="" background_color="" background_image="" background_position="center center" background_repeat="no-repeat" fade="no" background_parallax="none" parallax_speed="0.3"...
Waza: Quality or Quantity?
Waza Waza Everywhere In our respective martial arts systems, we learn many waza 技 (techniques)....
Respect is a two way street in martial arts
Respect is a two-way street, however, how many people are driving recklessly? “If you want...
The End of Training & Boredom In Martial Arts
Budō Is Limitless When does training end? When do we become a master? The short...
Unleash the Potential of Your Iaido Success
We’re diving deep into the art and discipline of Iaido, a journey that goes far...
Bushido Chūgi The code of Loyalty
Loyalty is one of the shining points in any list about the virtues important to...
Saya no uchi
I train to strike correctly. I perform keiko to understand the angles of my sword....
What is Kenjutsu? A guide to Japanese swordsmanship
Kenjutsu (剣術) is the Japanese art of the sword. It is one of the four...
Maai; Combative Space-timing
Teaching maai 間合い, the ideas of combative spacing and timing intervals in kenjutsu.
正月 Bujutsu New Years 2019
To all of you that have supported and also those that have caused trouble to...
Guilt and Responsibility
I heard a student say, “If I don’t do any kind of training every day,...
Secrets of Swordsmanship: In-yō. Ying & Yang
I wanted to talk about IN-YŌ 陰陽, or more commonly known as yin & yang....
Iaijutsu Iaido Sword Timing Lesson
Timing while training alone is an important aspect to keep alive and well in the...
7 Year Anniversary of Online and In-person Sword Learning
Today marks a significant milestone in our journey — the 7th Anniversary of Shinkan-ryu Kenpo!...
Sword Grip Tenouchi Iaido Video
This video describes basic hand grips (tenouchi) for using a katana (Japanese sword).
The Samurai and unwavering loyalty
The Samurai have been portrayed in popular culture as noble and faithful warriors who strictly...
The Sword With Two Edges
Today I decided to write the four kanji compound of morohanotsurugi. In English, we might...