Nam – Myoho – Renge – Kyo
The more gold is heated in the flames, the brighter will be its color;
the more a sword is whetted, the sharper it will become. And the more
one praises the blessings of the Lotus Sutra, the more his blessings
will increase. Bear in mind that the twenty-eight chapters of the
Lotus Sutra contain only a few passages elucidating the truth, but a
great many words of praise.
Letter to Myomitsu Shonin;
MWND, Vol. 5, p. 203
Nam – Myoho – Renge – Kyo