At his death, Toyotomi Hideyoshi wrote the following poem:

tsuyu to ochi / tsuyu to kienishi / waga mi kana / naniwa no koto wa / yume no mata yume

Naniwa, here, meant the castle of Osaka, in which he resided as Taikō. His life, and the castle in which he lived, were nothing more than a dream within a dream to him as he approached his final hours. For samurai, this theme, and the theme of the first line, which means, "the dew falls, the dew disappears," were present in much literature. In the Tale of the Taira, and in much of Zen Buddhist philosophy, the impermanence of life, as well as the fleeting nature of reality, were stressed. It was hoped that by focusing on this, a samurai could attain the resolve to throw his life away at a moment's notice without hesitation.

Aspirational professional killer.

https://www.youtube.com/watch?v=PBwAxmrE194