“I realized that this was true for both China and Japan: every one of those who had been brought to ruin or lost their lands had been punished by Heaven for neglecting the proprieties between sovereign and subject, the bond of affection between parent, child, and brother, and for wallowing in greed and extravagance. All the more wondrous, then, that I have survived thus far without mishap. Indeed, I am overwhelmed by the mercy and goodness of Heaven that I even hesitate to show my face to my fellow men.”

Katsu uses his Prologue to explain his reasons for writing an autobiography. He believes that his inappropriate lifestyle could serve as an example for his descendants and readers. He claims to be amazed that, in light of his consistent rule-breaking, he hadn’t been punished by Heaven, like others, and therefore must be blessed. Unlike the main body of the autobiography, the Prologue is more formal in tone and uses religious references specifically to Buddhism.

“I myself have resolved to follow the path of righteousness henceforth. More than anything, devote yourself to learning and act in accordance with the teachings of the past.”

Katsu wrote his autobiography after retiring around the age of 37. He claims that he is reformed at the time of writing despite a lifestyle of impropriety up until this point. Having only taught himself basic literacy in his twenties, the author seeks to pursue learning as part of this reformed lifestyle.

“There can’t be many in the world as foolish as I am. So let me say this to my grandchildren and great grandchildren—listen to what I have to say, and may the scoundrels and fools, especially, take my story as a lesson.”

Katsu uses the same hyperbole as in his Prologue as a starting point for the first chapter. He declares that he wants his descendants to learn about his life as an example of what not to do. Katsu believes that his life experience and misadventure qualify him for the role of teaching such life lessons.