If a warrior is not unattached to life and death, he will be of no use whatsoever. The saying that โAll abilities come from one mindโ sounds as though it has to do with sentient matters, but it is in fact a matter of being unattached to life and death. With such non-attachment one can accomplish any feat.
Yamamoto TsunetomoTo desire with oneโs very soul every second of every day to accomplish oneโs aim.
Yamamoto Tsunetomo