Day 15 concludes Chapter 10, The Teacher of the Dharma, and opens Chapter 11, Beholding the Stūpa of Treasures.

Having covered the arrival of the Stupa of Treasures last month, it is time to cycle back to the start of Day 15 and the significance of the Sutra of the Lotus Flower of the Wonderful Dharma.

Thereupon the Buddha said again to Medicine-King Bodhisattva-­mahasattva:

I have expounded many sutras. I am now expounding this sutra. I also will expound many sutras in the future. The total number of the sutras will amount to many thousands of billions. This Sutra of the Lotus Flower of the Wonderful Dharma is the most difficult to believe and the most difficult to understand.

Medicine-King! This sutra is the store of the hidden core of all the Buddhas. Do not give it to others carelessly! It is protected by the Buddhas, by the World-Honored Ones. It has not been expounded explicitly. Many people hate it with jealousy even in my lifetime. Needless to say, more people will do so after my extinction.

Medicine-King, know this! Anyone who copies, keeps, reads and recites this sutra, makes offerings to it, and expounds it to others after my extinction, will be covered by my robe. He also will be protected by the present Buddhas of the other worlds. He will have the great power of faith, the power of vows, and the power of roots of good. Know this! He will live with me. I will pat him on the head.

Enjoying the great power of faith, vows and roots of good. Never alone.