two samurai become fast friends and pledge themselves as blood brothers. For samurai this was very serious. Being blood brothers meant they pledged their lives to each other. They lived far away from each other, each serving a different lord. One wrote to the other saying no matter what, he would visit when the chrysanthemums were in bloom. The other said he'd wait for his arrival. But before the first one could set out on the journey, he got mixed up in some trouble in his domain, was put under confinement, and wasn't allowed to go out or send a letter. Finally summer is over and fall is upon them, the season when the chrysanthemums blossom. At this rate he won't be able to fulfill his promise to his friend. To a samurai, nothing's more important than a promise. Honor's more important than your life. So this samurai commits hara-kiri, becomes a spirit, and races across the miles to visit his friend. They sit near the chrysanthemums and talk to their heart's content, and then the spirit vanishes from the face of the earth. It's a beautiful tale."
"But he had to die in order to become a spirit."