by Régis Soavi

‘Ki belongs to the realm of feeling, not to that of knowledge.’¹Tsuda Itsuo, The Non-Doing, Chap. II, 2013, Yume Editions (Paris), p. 27 (1^re ed. in French, 1973). Tsuda Itsuo

As soon as you mention ki, you are dismissed as a mystic, a kind of crackpot: ‘It’s not scientific; no instrument or machine is capable of proving or demonstrating that ki exists.’ I completely agree. Indeed, if we consider ki to be a super-powerful energy, a kind of magic capable of throwing people across the room or killing them with just a shout, as was believed with kiai, we risk expecting miracles and quickly becoming disappointed.

Is ki an Eastern philosophy?

What is this “Eastern” philosophy that we supposedly do not have access to? Is there a specific domain reserved for a select few adepts, a handful of hand-picked disciples, or is this knowledge available to everyone, and what is more, without complicating our lives? I mean by leading a normal life, without being part of an elite group with access to secret knowledge, without having special, hidden practices that are doled out sparingly, but more simply by having a job, children, etc. When you practice Aikido, you are obviously engaged in both philosophical and practical research, but it is an “exoteric” rather than “esoteric” research.

Tsuda Itsuo wrote nine books, thus creating a bridge between East and West to enable us to better understand the teachings of Japanese and Chinese masters, to make them more concrete, simpler, and accessible to all. You do not have to be Eastern to understand and feel what it is all about. But it is true that in the world we live in, we are going to have to make a little effort. We need to break out of our habitual behaviours and references. We need to develop a different kind of attention, a different kind of concentration. It is not a question of starting from scratch, but of orienting ourselves differently, of directing our attention (our ki) in a different way.

First, we must abandon the very Cartesian idea that ki is one single entity, when in fact it is multiple. We must also accept that our bodies are capable of sensing things that are difficult to explain rationally, but which are part of our daily lives, such as sympathy, antipathy, and empathy. Cognitive science attempts to dissect all this using mirror neurons and other processes, but this does not explain everything, and sometimes even complicates matters.

In any case, there is an answer to every situation, but we cannot analyse everything we do at every moment in terms of the past, present, future, politics, or the weather. Answers arise independently of reflection; they arise spontaneously from our involuntary responses. Whether these answers are good or bad, analysis will tell us after the fact.

Ki in the West

The West was familiar with ki in the past; it was called pneuma, spiritus, prana, or simply vital breath. Today, this seems rather outdated. Japan has retained a very simple use of this word, which can be found in a multitude of expressions, which I will quote below, taking a passage from a book by my master.

But in Aikido, what is ki?

If any school can and should talk about ki, it is the Itsuo Tsuda School, not because we claim exclusivity, but simply because my master based all his teaching on ki, which he translated as breathing. That is why he spoke of a ‘School of Respiration’²ibid., Chap I, p. 17: ‘By the word respiration, I do not mean the simple bio-chemical process of oxygen merging with haemoglobin. Respiration is all at once vitality, action, love, a sense of communion, intuition, premonition, and movement.’³ibid., p. 16

Aikido is not a art of fighting, nor even a form of self-defence. What I discovered with my master was the importance of coordinating my breathing with my partner as a means of achieving a fusion of sensitivity in any situation. Tsuda Itsuo explained to us through his writings what his master Ueshiba Morihei had taught him. To convey this to us in a more concrete way, during what he called “the first part” – solitary practice, which we would now call Taisō – he would say KA when inhaling and MI when exhaling. Sometimes he would explain to us: ‘KA is the root of the Japanese word for fire, kasai, and MI is the root of the word for water, mizu.’⁴[see e. g. Tsuda Itsuo, The Science of the Particular, chap. XVIII, 2015, Yume Editions, p. 152–3 (1^st ed. in French, 1976, p. 157–8)]. The alternation of inhalation and exhalation, their union, creates kami, which can be translated as the divine. ‘But be careful,’ he would tell us, ‘we are not talking about the God of Christianity or of any other religion – if you are lacking reference points, we could say that it is God the universe, God nature, or simply life.’

In the dojo, there was a drawing in Indian ink by Master Ueshiba containing fourteen very simple shapes and which we called Futomani because O-sensei had said that it had been dictated to him by Ame-no-Minaka-nushi: the Celestial Center. Tsuda Itsuo explains this in his book The Dialogue of Silence⁵Tsuda Itsuo, The Dialogue of Silence, chap. XII, 2018, Yume Editions, p. 106–7 (1^st ed. in French, 1979, p. 157–8). Thanks to this, I gained a better understanding of the directions ki took when it had a form.

Reconnecting, rediscovering the links with what already exists deep within us

The founder spoke of Haku no budo and Kon no budo: kon being the essential soul that must not be stifled, but, he said, we must not neglect the haku soul, which ensures the unity of the physical being.⁶[see e. g. The Dialogue of Silence (op. cit.), chap. XII, p. 100–2; or The Way of the Gods (2021, same author & publisher), Chap XIII, p. 103–4]

Once again, we are talking about unity.

If our practice is called Ai-ki-do – “the way of unifying ki” – it is because the word ki has meaning.

Practical experience will allow us to understand this better than long speeches. And yet we must try to explain, try to convey this important message, because without it our art risks becoming a fight where “may the strongest, the most skilled, or the most cunning win,” or an esoteric, mystical, elitist, even sectarian dance.

And yet we know ki well; we can sense it from a distance. For example, when we walk down a small street at night and suddenly feel a presence, a gaze on our back, and yet there is no one there! Then suddenly we notice a cat watching us from a nearby rooftop. Just a cat, or a curtain that flutters surreptitiously. The gaze carries a very strong ki that everyone can feel, even from behind.

One of the practices of Seitai-dō called Yuki consists of placing your hands on your partner’s back and circulating ki. This is not about laying hands on someone who is, on the face of it, not sick to heal them, but about accepting to visualise the circulation of ki, this time as a fluid, like flowing water. At first, neither person feels anything, or very little. But then, little by little, they discover the world of sensation. You could say that it is a dimension in its own right, in all its simplicity. It is simple, it is free, it is not linked to any religion, it can be done at any age, and when you begin to feel this flow of ki, the practice of Aikido becomes so much easier. The kokyū hō exercise, for example, cannot be done without kokyū, and therefore without ki, unless it becomes an exercise in muscular strength, a way of defeating an opponent.

I would never have been able to discover the Aikido that my master taught if I had not willingly and stubbornly sought it out. In sensitive research, through all aspects of daily life, to understand, feel, and expand that understanding without ever giving up.

Atmosphere

Ki is also atmosphere, so in order to practice, you need a place that allows ki to flow between people. In my opinion, this place, the dojo, should, whenever possible, be “dedicated” to a particular practice or school. Tsuda Itsuo believed that entering the dojo was a sacred act, which is why we bowed when stepping onto the tatami mats. It is not a sad place where people ‘should wear a scowling constipated expression. On the contrary, we must maintain a spirit of peace, communion and joy.’⁷Tsuda Itsuo, Heart of Pure Sky (posth.), ’Booklet n°3 – Respiratory Practice in Aikido’, 2025, Yume Editions, p. 102 (1^st ed. in French, 2014)

The atmosphere of the dojo is nothing like that of a club or a multi-sports hall that is rented for a few hours a week and used, for reasons of profitability, by different groups that have nothing to do with each other. The kind of place, the kind of gym where you go, train, then take a shower and say goodbye; at best, you might have a beer at the local bar to chat a little with each other. When you know about ki, when you start to feel it, and especially when you want to discover what lies behind this word, a place like the dojo is really something else entirely. Imagine a quiet place in a small Parisian passageway at the end of the 20^th arrondissement. You cross a small garden and on the first floor of a very simple building is “The Dojo.”⁸[more of which in Yann Allégret, On the wach for the right moment, pub. online (Feb. 2014)]

You can come every day if you want, because there is a session every morning at quarter to seven: you are at home. You have your kimono on a hanger in the changing rooms, the session lasts about an hour, then you have breakfast with your partners in the adjoining area, or you rush off to work. On Saturdays and Sundays, you can sleep in, with sessions at eight o’clock.

Explaining ki is difficult, which is why only experience allows us to discover it. And for that, we must create the conditions that allow for this discovery. The dojo is one of the elements that greatly facilitates the search in this direction. It reconnects circuits, but also unties the bonds that constrain us and obfuscate our vision of the world.

Little by little, the work will be done, the knots will be untied, and if we accept that they are untied, we can say that the ki begins to flow more freely again. At that moment, it flows as vital energy; it is possible to feel it, visualise it, and in a way, make it conscious. Unnecessary tensions that cannot be released cause our bodies to stiffen. To make this as clear as possible, we could say that it is a bit like a garden hose that is blocked. It risks bursting upstream. The stiffening of the body forces it to react for its own survival. This triggers unconscious reactions that act on the involuntary nervous system. To avoid these blockages, micro-leaks of this vital energy occur, and sometimes even larger leaks, for example in the arms, at the koshi, and mainly at the joints. The immediate consequence is that people are no longer able to practice with fluidity, and it is strength that compensates for the lack. Parts of the body stiffen and begin to react like bandages or casts to prevent these losses of vital force. This is why it is so important to work on feeling the ki, on making it circulate. At first, visualisation allows us to do this, but as we deepen our breathing (the sensation, sensitivity to ki), if we remain focused on flexible practice, if we empty our minds, we can discover, see, and feel the direction of ki, its circulation. This knowledge allows us to use it, and the practice of Aikido becomes easy. We can begin to practice non-resistance: non-doing.

Women’s natural sensitivity to ki

Women generally have greater sensitivity to ki, or more accurately, they retain it more if they do not distort themselves too much in order to defend themselves in this male-dominated world where everything is governed by the criteria and needs of masculinity, the image of women that is conveyed, and the economy. Their sensitivity stems from the need to keep their bodies flexible so that they can give birth naturally and care for newborns. This flexibility cannot be acquired in gyms, weight rooms, or fitness centres; rather, it is a tenderness, a gentleness that can be firm and unwavering when necessary. Newborns need our full attention, but they cannot say ‘I’m hungry, I’m thirsty, or I’m tired,’ or ‘Mom, you’re too nervous, calm down, and tell Dad to speak more softly, it scares me.’

Thanks to their natural sensitivity, they sense the child’s needs, they intuitively know what to do, and ki flows between mother and child. When the father, who is always very rational, does not understand, the mother senses and therefore knows. Even if she is not a mother, even if she is a young woman with no experience, it is the body that reacts, it is the body that has this natural sensitivity to ki, and that is why, I think, there are so many women in our School. It is because ki is at the centre of our practice that nothing can be done without it. We focus our sensitivity in this direction and thus we can see the world and people not only on the level of appearances but much further, in their depth, what is behind the form, what structures it, or what drives it.

Some examples by Tsuda Itsuo, taken from The Non-Doing

Notes

• 1
  Tsuda Itsuo, The Non-Doing, Chap. II, 2013, Yume Editions (Paris), p. 27 (1^re ed. in French, 1973)
• 2
  ibid., Chap I, p. 17
• 3
  ibid., p. 16
• 4
  [see e. g. Tsuda Itsuo, The Science of the Particular, chap. XVIII, 2015, Yume Editions, p. 152–3 (1^st ed. in French, 1976, p. 157–8)]
• 5
  Tsuda Itsuo, The Dialogue of Silence, chap. XII, 2018, Yume Editions, p. 106–7 (1^st ed. in French, 1979, p. 157–8)
• 6
  [see e. g. The Dialogue of Silence (op. cit.), chap. XII, p. 100–2; or The Way of the Gods (2021, same author & publisher), Chap XIII, p. 103–4]
• 7
  Tsuda Itsuo, Heart of Pure Sky (posth.), ’Booklet n°3 – Respiratory Practice in Aikido’, 2025, Yume Editions, p. 102 (1^st ed. in French, 2014)
• 8
  [more of which in Yann Allégret, On the wach for the right moment, pub. online (Feb. 2014)]
• 9
  The Non-Doing (op. cit.), Chap. II, p. 25–7