Following a set of rules that later came to be known as the Bushido, a samurai served the warlords and the nobility without fear of death. An honorable samurai was like kami-no-kaze, an elemental spirit of the wind, striking like the thunderstorms of 1274 and the typhoon of 1281 that helped the samurai defenders of Japan hold back the Mongol invaders despite being vastly outnumbered.
Once his master died, or had his master for some reason disregarded him, the samurai became a ronin, a wandering man without home or destiny. The only honorable option then was to commit hara-kiri, a ritual suicide. Some honored this code, some did not. Those who chose to live were forced to sever all contats to their past life and to haunt the night like lonely wolves.
Here’s a couple of tracks for the samurai in you.