If mind and body are not unified, oneness is not possible. For example, some children in school appear to be listening attentively to the teacher but they actually hear nothing. Their eyes do one thing and their bodies another. Of course these students perform poorly. During a fight most people experience fear.
Blood rises to their brains, their hearts pound, and they have no calmness.
In such an incorrect state of being they cannot use their whole ability. Similarly, some people perform well in sports practice, but when competition begins in earnest, they fall apart. The result is they cannot harness their whole potential. The Kokikai School of Aikido features a logical training system with concrete goals of effective self-defense and the development of each individual's full potential power through the realization of the correct state of being. That full potential power is made a dependable state through rigorous training in the Kokikai Training Method, using Ki testing and specific resistance to technique to lead the practitioner to deep self-discovery.