1. Preface
1-1
1-2
1-3
1-4
1-5
2. Samjae
2-1
2-2
2-2-1
2-2-2
2-2-3
2-2-4
2-2-5
2-3
2-4
2-5
2-6
2-7
2-8
2-9
3. Haneul(Sky)
3-1
3-2
3-2-1
3-2-2
3-2-3
3-3
3-4
3-5
3-6
3-7
3-8
3-8-1
3-8-2
3-8-3
3-9
3-10
3-11
3-12
4. Tang(Earth)
4-1
4-2
4-3
4-4
4-4-1
4-4-2
4-4-3
4-4-4
4-4-5
4-5
4-6
4-7
4-7-1
4-8
5. Saram(Man)
5-1
5-2
5-3
5-4
5-4-1
5-5
5-6
5-7
5-8
5-9
6. Ilgiyae
6-1
6-2
6-3
6-4
6-5
6-6
6-7
6-7-1
6-7-2
6-8
6-9
6-9-1
6-9-2
6-9-3
6-9-4
6-10
6-10-1
6-10-2
6-11
6-12
7. Kang-Yu
7-1
7-2
7-3
7-3-1
7-3-2
7-3-3
7-4
7-4-1
7-4-2
7-4-3
7-5
7-6
7-7
7-8
7-9
7-10
7-10-1
7-10-2
7-10-3
7-10-4
7-10-5
7-11
7-12
7-13
8. Unity of SJKY
8-1
8-2
8-3
8-4
8-5
9. Mind of Taekwondo
9-1
9-2

7-10-3. Advantages of Kang-Yu

In the completion of Taekwondo technique the right hardness should include softness, which again includes hardness. In this Kang and Yu techniques make oneness.

In this oneness "the soft capably suppress down the hard while the hard capably cut off the soft. Also do the soft capably keep the hard alive making it changeful while the hard capably keep the soft strong making its bones inside."(Ch.41) Along this manner "he who knows the male and keeps to the female/ Becomes the ravine of the world. / Being the ravine of the world, /He will never depart from eternal virture, /But returns to the state of infancy."¹⁾ It means, you can develope yourself to the true emptiness through oneness of Kang-Yu.

Kang and Yu are the opposite concepts in their symbolic meaning. But in their actual applications they can be unified in a technique like this. How do you know you can accord Kang-gi and Yu-gi? Can you follow the opponent cowering your body? If you can, you can put Yu-gi in Kang-gi. Can you concentrate your motion on his weak part with adequate relaxation? If you can, you can put Kang-gi in Yu-gi.

That is to say, you should make use of advantages of your pose to build power, then concentrate it. This is Kang-gi, which already follows the Nature in use of advantages of pose. Hence, the 'following' in Kang-gi, which is the essence of Yu-gi. On the other, you should exhaust his motion at the end of your following, to ruin his balance and prevent his concentration after all. Since he fails his concentration you come to get more concentration relatively. Hence the 'concentration' in Yu-gi, which is the essence of Kang-gi.

<He who knows the male and keeps to the female/ Becomes the ravine of the world.>

What is the reason you should make use of the advantage of pose to obtain Kang? “Tide and balance when united makes pose.”(Ch.24) Tide is to be obtained in the unification of Haneul and Saram, and balance in the unification of Tang and Saram.(Ch. 19). Therefore, pose is connected to Haneul and Tang based on Saram. As Haneul and Tang are in connection based on Saram(man) you can control both distinguished things and the foundation of the distinction along what you intend to do. After all you can build Kang according to what you intend to do. This is why you should make use of the advantage of pose. Otherwise, if you merely rely on your strength to fight your opponent, he can make counter use of you strength to have you opposed to the world.

The way to obtain Yu is to ruin the opponent's balance following him. In order to follow him you should control the appropriate distance, for which you should ride the flow of <Heo-Sil>. For “If you master how to control <HeoSil> in this manner you will be familiar with the Taekwondo distance,"(Ch. 29) and with your controlling distance you can be adequately close to or far from your opponent to follow him, yet not losing what you intend to do. In addition, “since the opponent adapts himself to the change pursuing what he wants" you can ruin his balance "only when you restrict his adaptation along the flow of <Heo> and <Sil>,"(Ch 29) so "you can find your ideal balance only in your accomplishment of what you want in motions according to your opponent."(Ch. 22) This is why you can obtain Yu by riding the flow of <Heo-Sil>.

1) Lao Tsu, Tao Te Ching, 28. 知其雄, 守其雌, 爲天下谿, 爲天下谿, 常德不離, 復歸於兒.