Bushido is realised in the presence of death. In the case of having to choose between life and death you should choose death. There is no other reasoning.
Yamamoto TsunetomoMeditation on inevitable death should be performed daily. Every day when oneโs body and mind are at peace, one should meditate upon being ripped apart by arrows, rifles, spears and swords, being carried away by surging waves, being thrown into the midst of a great fire, being struck by lightning, being shaken to death by a great earthquake, falling from thousand-foot cliffs, dying of disease or committing seppuku at the death of oneโs master. And every day without fail one should consider himself as dead
Yamamoto Tsunetomo