In the basic technical principles of judo, the “inner sanhe” is called “the unity of heart, qi, and force” or “the unity of will, qi, and force”, which means that the heart senses the weakness of the opponent and immediately takes this opportunity to become a volitional activity and use the technique, without any condensation in between the process.
Sasaburo Takano said in Kendo: “The mind is the intellect, the qi is the will, and the force is the power of the body, which is manifested in technique.” The so-called unity of mind, qi and force is the place where the eyes and ears hear, which immediately becomes a spiritual activity, and immediately uses tricks with the role of the spirit, which is extremely flexible and rapid, without hindrance. Those who are good at combining these three can begin to adapt to changes and win. Anyone who sees but does not follow, feels the heart but does not follow the technique, and is difficult to use no matter how it is used, is the norm for beginners or interruptions of learning and art. When it comes to deciding whether to win or lose, being agile is more important than being strategic. If the mind, qi, and power cannot be united, no high tricks can be performed. ”
The unity of mind, qi and force has been the most important technical principle in judo training since ancient times, and this principle is also the principle of “the unity of qi, sword, and body” in kendo.
Since the basic technical principle of “the unity of heart, qi and force” in judo is consistent with the “inner three” theory of “heart and intention, intention and qi, and qi and force” of China’s shape-meaning boxing, the author is calling this principle “inner three”.