|Taekwondo Bible, Vol.2||
The target on which you should concentrate you motion and power is just your opponent's weakest point, which is his blind point. "There are three kinds of blind points, which come from three sources: mind, pose and motion, and each of them is respectively called blind point of mind, of pose and of motion."(Ch.28)
"First, you can find your opponent's blind point where his mind is scattered or it slants to one side."(Ch.28) If he is careless you can see a blind point just there, and if he clings to a certain intention you can see find an empty blind point behind it. For an example, if he clings to his attack you can decoy him with three kinds of filled blind point suppressing him, and if he draws back overcome by fear you should approach him fast with rhythmical walking.
"Second, you can see your opponent's blind point where his pose collapses or is scattered."(Ch. 28) For examples, if he is attached to punching with his fists only he must have inclination to protection only of his upper body pushing forward, so you can kick up his jaw easily with your Ap-Chagi. And if his pose is high you can attack his lower part to fell him down, and if he keep too low pose stuck to the ground you can make use of his tardiness exhausting him and suppress him.
"Third, you can see a blind point between his motion and motion."(Ch.28) For an example, counter kick is the typical instance of thrusting the blind point between opponent's motions. It is the counter kick to find crevice between his kick and the next thrusting the blind point. For this you should be able to move together with your opponent, and "in order to move together with your opponent finding the right way of Taekwondo you should control yourself according to the rhythm of motion and have your will ride the change."(Ch.24)