"... there were physicians in China named Huang Ti and Pien Ch’üeh, and there were physicians in India named Water Holder and Jivaka. They were the treasures of their age and teachers to the physicians of later times. But the man called the Buddha was a superb physician who far surpassed them. This Buddha expounded the medicine of immortality. This is the five characters of Myoho-renge-kyo we have today. Moreover, he specifically taught that these five characters are “good medicine for the ills of the people of Jambudvipa."
From Gosho "The Good Medicine for All Ills" (The Writings of Nichiren Daishonin Volume I, page 937)
From Gosho "The Good Medicine for All Ills" (The Writings of Nichiren Daishonin Volume I, page 937)