Offense and Defense Be Not Different
"What is Yu?"
"Following the opponent's motion with no
resistence; this principle is called Yu."
In all the experiences above we can see that attack and defense are not different from each other, and so, you should have your opponent opposed to the world and you harmonize yourself in it, where you will find sameness of attacks and defenses of right Taekwondo.
When you hit your opponent you should break his will with your will, oppress his tide down with your tide, scatter his vigor with your Kihap and hit his trunk off with your weapon. When you block his attack you should empty yourself to lead his intention in vain, carry your tide on his and scatter his sharpness rather absorbing yourself in it to make your attack. Why are they not same?
If your hands and feet(your weapon) are hard and quick you can easily injure the opponent's body as you want, if your vigor is sharp with your excellence in controlling your bloody spirit you can easily fell him down even without outer hurts, and if your tide is firm with deliberation you will be easily able to surpass him even with no fight. Also can you endure the opponent's attack if you have strong body, you can turn his attack to your own if you fill yourself firmly, and he cannot find his target to attack if you empty yourself fully. What is an attack and what is a defense among them?
If you put yourself mixed in the opponent's attack when he attacks you, and so if you can have him opposed to the world in efficient way it will be just no less a best defense than a best attack. As the result he will collapse by himself because of his own attack and he will drive himself against the earth to lose his power. This can be one of your good attacks as well, thus, it is what the world thinks that distinguish an attack from a defense, depending only upon the ideas, while it is what Taekwondo knows that harmonizes an attack with a defense into sameness, depending rather upon actions.
How can you follow these teachings?
The distance of penetrating the opponent tells you that you should dash on his center, as soon as you see a good chance, breaking through his defense on the tide of a beast's trampling fragile grass with the sense of piercing him to behind away. Its critical point is the tide of billows that overwhelms rocks.
The distance of moving aside tells you that you should not block directly his fierce attack with powerful tide but rather move aside suddenly to stab his mind with vacuity. It is important in this skill that you should not get far away from him but find out a chance in which you keep a proper distance to him. Its critical point is the contemplation of not drawing back.
The secret tip to get this skill in this whole process is to have your breath even under perfect control. Breath is the main stem of change extended from the ceiling to the bottom of vital phenomena, and an axis that binds mind and body to one. Controlling this breath you can control the mind and the motion, and promoting your body that mediates the both you can make a motion that accords with the mind and a body that supports such motion.
In this manner you can make your mind calm to control the breath, with which you will generate balance and harmony of your vigor from whole body to reconcile them with the movements of bones and muscles, so you can control over your opponent and defend his attack. This is possible since the biological breathing flows consistently from each cell to the whole mass. Therefore, the breath can finally be the resource of powers to attack him and protect you.
The key point of controlling breath, in offenses or in defenses, is same and simple, no matter whether before or after your mastery. It is to breathe in when you block your opponent's attack and to breathe out when you hit him, with no unnecessary breathing. To breathe in does not mean merely to inhale air in your lung but to empty your whole to receive his fierceness, while to breathe out does not mean just to exhale air from your body but to fill your whole to explode the inner energy to him. Make both at once.