Day 19 concludes Chapter 14, Peaceful Practices, and begins Chapter 15, The Appearance of Bodhisattvas from Underground.
Having last month considered how Śākyamuni is like the king who rewards his soldiers’ efforts, we consider why Śākyamuni teaches this sūtra lastly.
“Mañjuśrī! This Sutra of the Lotus Flower of the Wonderful Dharma is the most excellent and profound teaching of all the Tathāgatas. Therefore, I expound it lastly just as the powerful king gave the brilliant gem lastly, the one which he had kept [in his topknot) for a long time.
“Mañjuśrī! This Sutra of the Lotus Flower of the Wonderful Dharma is the treasury of the hidden core of the Buddhas, of the Tathāgatas. It is superior to all the other sūtras. I kept it [in secret] and refrained from expounding it for the long night. Now I expound it to you today for the first time.”
Nichiren comments on this in Selecting the Right Time:
It is said in the Lotus Sūtra, fascicle 5 (chapter 14): “This Lotus Sūtra is the secret treasure of all Buddhas. It is supreme of all sūtras.” Please note that “it is supreme of all sūtras.” According to this sūtra, therefore, he who insists that the Lotus Sūtra is supreme of all sūtras is a true practicer of the Lotus Sūtra, isn’t he? Nevertheless, many who are revered in the land insist that there are sūtras superior to the Lotus. Standing against these monks, who are revered by the king and his subjects, the practicer of the Lotus Sūtra is poor and powerless, with all the people in the land despising him. Under such circumstances, if he points out their sin of slandering the True Dharma as stubbornly as Never Despising Bodhisattva or as decisively as Commentator Bhadraruci defeated Brahman, the Boaster, his life will be in jeopardy. This seems of prime importance. This fits me, Nichiren.
Senji-shō, Selecting the Right Time: A Tract by Nichiren, the Buddha’s Disciple, Writings of Nichiren Shōnin, Doctrine 1,
Page 250-251