Taekwondo is composed of attacks and defences. The attack or the defence is delivering mind to each other between you and your opponent. Hands and feet, body and weapon mediate this interaction. Nothing can be Taekwondo without attacks and defences, and the Taekwondo stops being itself right away without delivering minds.

Then, what is the delivering minds as the attack or the defence in Taekwondo? The attack of Taekwondo is delivering the intending mind to ruin your opponent's intention, and the defence of Taekwondo is delivering your mind in order to protect what you intend. Each of both is not different fundementally from the other. And, the attack is making the opponent opposed to the world in this delivering minds and the defence is making myself harmonized with the world, thus each of the both is not contradictory to the other.