We all want to live. And in large part we make our logic according to what we like. But not having attained our aim and continuing to live is cowardice. This is a thin dangerous line.
It is often said that to die without gaining one's aim is a dog's death, and fanaticism. But despite this, there is no shame in such a death. This is the substance of the Way of the Samurai. If by setting one's heart right every morning and evening, one is able to live as though his body were already dead, he gains freedom in the Way. His whole life will be without blame, and he will succeed in his calling.
He that can embrace this teaching thoroughly, though his head be cut from his body, he shall not die.
Even if a samurai's head be cut off on the battlefield, his body will retain the strength to carry out a final sword blow.
When one becomes like a hungry ghost, one will not fall far from one's aim.