QUESTION: If someone chanted Namu Myōhō Renge Kyō without understanding its meaning will the benefit of understanding still be received?

ANSWER: When a baby nurses, it does not comprehend the taste; nevertheless, it receives the benefits of the milk naturally. Did anyone know the ingredients or formula for Jīvaka’s wondrous medicines? Water is without intent but it can extinguish fire; and even though fire consumes many things, can we say it does this deliberately? This is Nāgārjuna and T’ien-t’ai’s idea! I am merely repeating it.

Shishin Gohon-shō, The Four Depths of Faith and Five Stages of Practice, Writings of Nichiren Shōnin, Faith and Practice, Volume 4, Page 106-107