Day 31 covers Chapter 27, King Wonderful-Adornment as the Previous Life of a Bodhisattva.

Having last month discussed the role of the sons of King Wonderful-Adornment in spreading the Lotus Sutra, it is time to review the wonders they displayed and the impact of those wonders.

Pure-Store and Pure-Eyes joined their ten fingers and palms together, and said to their mother, ‘We were born in this family attached to wrong views although we are sons of the King of the Dharma.’

The mother said to them, ‘Show some wonders to your father out of your compassion towards him! If he sees [the wonders], he will have his mind purified and allow us to go to that Buddha.’

Thereupon the two sons went up to the sky seven times as high as the tala-tree, and displayed various wonders because they were thinking of their father. They walked, stood, sat, and reclined in the sky. Then they issued water from the upper parts of their bodies, and fire from the lower parts. Then they issued water from the lower parts of their bodies, and fire from the upper parts. Then they became giants large enough to fill the sky, became dwarfs, and became giant again. Then they disappeared from the sky and suddenly appeared on the earth. Then they dived into the earth just as into water, and stepped on the surface of water just as on the earth. [Then they went up to the sky and stayed there.] By displaying these various wonders, they purified the mind of their father, that is, of the king, and caused him to understand the Dharma by faith.

I agree strongly with Rev. Ryusho Jeffus’ observation on this in his Lecture on the Lotus Sutra:

I like this story of the two boys, Pure-Store and Pure-Eyes, who end up converting their parents to the Lotus Sutra not so much because of the phenomena the two sons performed but for the example that our actions speak more powerfully than our words. We can convince more people of the truth of the Lotus Sutra through the way we act in society than by merely talking theoretically about Buddhism. Getting through life and the day-to-day concerns we all face may seem ordinary, even hum-drum. However, the manner in which we face and ultimately overcome our problems can look supernatural to others around us who struggle and suffer so much. We don’t need to spout water or fire from our bodies; we merely need to show the joy of our practice in the face of life as human.
Lecture on the Lotus Sutra