Day 22 covers all of Chapter 17, The Variety of Merits

As the title suggests, after hearing about the longevity of the Buddha it’s bonus time for believers:

Anyone who hears that my life is so long, and understands it by faith even at a moment’s thought, will be able to obtain innumerable merits.

Bodhisattvas will believe:

The Bodhisattvas who have practiced the Way
For the past innumerable kalpas,
Will believe my longevity
When they hear of it.

They will receive this sūtra on their heads,
And wish:
“May we live long and save all living beings
Just as the World-Honored One of today,
Who is the King of the Śākyas, [saves them]
By expounding the Dharma without fear
At the place of enlightenment
With [a voice like] a lion’s roar!
When we sit at the place of enlightenment,
Respected by all living beings,
May we preach that we also shall live
As long [as the World-Honored One of today]!”

Obtaining the knowledge of the equality and differences of all things:

Furthermore, Ajita! Those who hear of my longevity of which I told you, and understand the meaning of my words, will be able to obtain innumerable merits, which will help them attain the unsurpassed wisdom of the Tathāgata. Needless to say, those who hear this sūtra, cause others to hear it, keep it, cause others to keep it, copy it, cause others to copy it, or offer flowers, incense, necklaces, banners, streamers, canopies, perfumed oil, and lamps of butter oil to a copy of it, will be able to obtain immeasurable merits. These merits will help them obtain the knowledge of the equality and differences of all things.

Believing is seeing:

“Ajita! The good men or women who hear of my longevity of which I told you, and understand it by firm faith, will be able to see that I am expounding the Dharma on Mt. Gṛdhrakūṭa, surrounded by great Bodhisattvas and Śrāvakas. They also will be able to see that the ground of this Sahā-World is made of lapis lazuli, that the ground is even, that the eight roads are marked off by ropes of jāmbūnada gold, that the jeweled trees are standing in lines, and that the magnificent buildings are made of treasures. They also will be able to see that the Bodhisattvas are living in those buildings. They will be able to see all this because, know this, they have already understood [my longevity] by firm faith.

The sky is no limit:

Anyone who not only understands
This sūtra by faith
But also keeps, reads and recites it,
And copies it, or causes others to copy it,
And strews flowers, incense,
And incense powder to a copy of it,
And lights lamps of the perfumed oil
Of sumanas, campaka, and atimuktaka
Around the copy of this sūtra
And offers the light thus produced to it,
Will be able to obtain innumerable merits.
His merits will be as limitless as the sky.