That is such a beautiful quote.
I was told some of his books would be considered "I-Novels" or "watakushi shōsetsu". Which are meant to be books that are based on events in the authors life, yet still entirely fiction. I wonder if this article is speaking about the events that correspond to that particular book.
For more information, check out Clair Graves' model of psychological evolution, Spiral Dynamics, Leo Gura of Actualized dot org does an excellent video series on this model and the blog post about The Big Picture of Global Politics is an excellent application of this model to everything we're dealing with from China to Trump currently.
Humanity must awaken to it's devilry.
Link: https://www.jstor.org/stable/4384180, also works in sci-hub if you don't have access.