If you're interested, you should read Hagakure; it's like 'the Bible of Bushido'. You can download it from this link:

http://download.library1.org/main/1425000/b4de605c6c651e93ee721c0eefed8197/Bennett%2C%20Alexander_%20Yamamoto%2C%20Tsunetomo%20-%20Hagakure%20_%20the%20secret%20wisdom%20of%20the%20samurai-Tuttle%20Publishing%20%282014%29.pdf

“The way of the warrior (bushido) is to be found in dying. If one is faced with two options of life or death, simply settle for death. It is not an especially difficult choice; just go forth and meet it confidently. To declare that dying without aiming at the right purpose is nothing more that a "dog's death" is the delicate and shallow way of the Kamigata warriors. Whenever faced with the choice of life and death, there is no need to try and achieve one's aims. Human beings have a preference for life. As such, it is a natural tendency to apply logic to justify one's proclivity to stay alive. If you miss the mark and you live to tell the tale, then you are a coward. This is a dangerous line of thought. If you make a mistake and die in the process, you may be thought of as mad, but it will not bring shame. This is the mind-set of one who firmly lives by the martial way. Rehearse your death every morning and night. Only when you constantly live as though already a corpse (joju shinimi) will you be able to find freedom in the martial way, and fulfill your duties without fault throughout your life.” (I, 2).