Day 30 covers all of Chapter 26, Dhāraṇīs
When the Buddha is asked by Medicine-King Bodhisattva how many merits will be given to the “good men or women who keep, read, recite, understand or copy the Sutra of the Lotus Flower of the Wonderful Dharma,” the Buddha replies:
“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 gatha of four lines of this sutra, understand the meanings of it or act according to it.”
And following this Medicine-King Bodhisattva, Brave-In-Giving Bodhisattva, Vaisravana Heavenly-King, World-Holding Heavenly-King and the 10 raksasis daughters, their mother and attendants offer dharanis to protect the teacher of the Dharma.
Back in May I wrote: “Only two of these – Medicine-King Bodhisattva and the 10 raksasis daughters and their mother – are singled out to receive merit for their efforts by the Buddha.”
In re-reading the chapter today I realized I was mistaken. Unlike the raksasis daughters and their mother, whose “merits will be immeasurable” in exchange for their protection, Medicine-King Bodhisattva will not receive, but he “will be able to give many benefits to all living beings.”
Yes, being able to give merits to others is a merit for oneself, but that doesn’t make my earlier post any less mistaken. The whole point of reading and then re-reading and then re-reading is to understand.