In the past there were medical practitioners named Yellow Emperor and Pien Ch’üeh in China and Ch’ih-shui and Jīvaka in India. They were the treasures of the world in those days and master physicians for generations to come. And yet, the Buddha, who preached the “good medicine” that keeps us from growing old and dying is the greatest of physicians who surpasses them both. The “good medicine” refers to none other than the five Chinese characters of Myō, Hō, Ren, Ge, and Kyō. Moreover, the Buddha declared these five characters to be “a panacea for the illness of the people in the Jambudvīpa.”

Myōshin-ama Gozen Gohenji, A Response to My Lady, the Nun Myōshin Writings of Nichiren Shōnin, Volume 7, Followers II, Pages 102