Eight Key Concepts
1. Yong Gi - Courage
2. Chung Shin Tong Il - Concentration
3. In Neh - Endurance
4. Chung Jik - Honesty
5. Kyum Son - Humility
6. Him Cho Chung - Control of Power
7. Shin Chook - Tension & Relaxation
8. Wan Gup - Speed Control