Day 30 covers all of Chapter 26, Dhāraṇīs
Thereupon Medicine-King Bodhisattva rose front his seat, bared his right shoulder, joined his hands together towards the Buddha, and said to him:
“World-Honored One! How many merits will be given to the good men or women who keep, read, recite, understand or copy the Sūtra of the Lotus Flower of the Wonderful Dharma?”
The Buddha said to him:
“Suppose some good men or women make offerings to eight hundred billion nayuta Buddhas, that is, as many Buddhas as there are sands in the River Ganges. What do you think of this? Are the merits given to them many or not?”
“Very many, World-Honored One!”
The Buddha said: “More merits will be given to the good men or women who keep, read or recite· even a single gāthā of four lines of this sūtra, understand the meanings of it or act according to it.”