Yasunari Kawabata had Parkinson's disease), a possible illicit love affair, or the shock caused by the suicide of his friend Yukio Mishima in 1970. Unlike Mishima, Kawabata left no note, and since (again unlike Mishima) he had not discussed significantly in his writings the topic of taking his own life, his motives remain unclear. However, his Japanese biographer, Takeo Okuno, has related how he had nightmares about Mishima for two or three hundred nights in a row, and was incessantly haunted by the specter of Mishima. In a persistently depressed state of mind, he would tell friends during his last years that
Yangmingism conceptualization of good and evil are irrelevant if one does not, in reality, act in accordance with that conceptualization: "to know and not to act is not to know". Naturally, this extended to the political sphere, and, through incorporation into Mitogaku thought, a violent form of Yangmingism became an influence on the incipient anti-foreigner movement in 19th century Japan. In the 20th century, Japanese author and nationalist Yukio Mishima examined Yangmingism as an integral part of the ideologies behind the Meiji Restoration as well as further samurai resistance, in particular the Shinpūren rebellion. Yangmingism Yangmingism, known in Mandarin as "Yángmíngxué"