The reason for the chapter title, “Encouragement to Uphold the Sutra,” may be obscure, as it is not so much that the bodhisattvas or nuns are encouraged as that they themselves promise or make a vow to endure and persist in teaching the Sutra despite rejection and persecution.

This concern and promise follow from the request of the Buddha at the end of Chapter 11, where Shakyamuni Buddha asks that anyone who can embrace, read, and recite the Sutra come before him now and make such a vow.

Now, here in Chapter 13, bodhisattvas respond: “We will cherish neither our bodies nor our lives but care only for the unexcelled way. In ages to come, we will protect and uphold what the Buddha has entrusted to us.” And they promise that they will go to preach the Dharma to anyone who seeks it. “We are emissaries of the WorldHonored One,” they declare, and say that they will teach the Dharma well, facing multitudes without fear. (LS 259—60)

Words such as these were very important to Nichiren and to many of his followers over the centuries who suffered abuse and persecution as a consequence of being ardent, sometimes fanatical, devotees of the Lotus Sutra.