Unity of Will and Mind

  If the mind is compared to the speaker of a telephone, then the will is like the electric current. It doesn't matter how sensitive the speaker is, if there is no electric current, no communication takes place. Likewise, even if you correctly comprehend your opponent's movements and are aware of an opening, if the will to act on this knowledge is lacking, no effective technique will be forthcoming. The mind may find an opening, but the will must be activated in order to execute the appropriate technique.