Day 29 covers all of Chapter 25, The Universal Gate of World-Voice-Perceiver Bodhisattva.

A Bodhisattva with promise:

The Buddha said to Endless-Intent Bodhisattva: “Good man! If many hundreds of thousands of billions of living beings hear [the name of] World-Voice-Perceiver Bodhisattva and call his name with all their hearts when they are under various sufferings, World-Voice-Perceiver Bodhisattva will immediately perceive their voices, and cause them to emancipate themselves [from the sufferings].”

Among the long list of sufferings from which one can be emancipated:

Those who have much lust will be saved from lust if they constantly think of World-Voice-Perceiver Bodhisattva and respect him. Those who have much anger will be saved from anger if they constantly think of World-Voice-Perceiver Bodhisattva and respect him. Those who have much stupidity will be saved from stupidity if they constantly think of World-Voice-Perceiver Bodhisattva and respect him. Endless-Intent! World-Voice-Perceiver Bodhisattva has these great supernatural powers. He gives many benefits to all living beings. Therefore, they should constantly think of him.

Fruits of merits:

Endless-Intent! Because World-Voice-Perceiver Bodhisattva has these powers, the merits of those who respect him and bow to him will not be fruitless. Therefore, all living beings should keep the name of World-Voice-Perceiver Bodhisattva.

World-Voice-Perceiver Bodhisattva is not just a wishing stone. In the same manner as Wonderful-Voice Bohisattva, which was mentioned in Day 28, World-Voice-Perceiver Bodhisattva transforms into gods and others in order to expound the Dharma:

Endless-Intent Bodhisattva said to the Buddha: “World-Honored One! How does World-Voice-Perceiver Bodhisattva go about this Sāha-World? How does he expound the Dharma to the living beings? What expedients does he employ?”

The Buddha said to Endless-Intent Bodhisattva: “Good man! In a certain world, World-Voice-Perceiver Bodhisattva takes the shape of a Buddha and expounds the Dharma to those who are to be saved by a Buddha. He takes the shape of a Pratyekabuddha and expounds the Dharma to those who are to be saved by a Pratyekabuddha. He takes the shape of a Śrāvaka and expounds the Dharma to those who are to be saved by a Śrāvaka. He takes the shape of King Brahman and expounds the Dharma to those who are to be saved by King Brahman. He takes the shape of King Śakra and expounds the Dharma to those who are to be saved by King Śakra. He takes the shape of Freedom God and expounds the Dharma to those who are to be saved by Freedom God. He takes the shape of Great-Freedom God and expounds the Dharma to those who are to be saved by Great-Freedom God. He takes the shape of a great general in heaven and expounds the Dharma to those who are to be saved by a great general in heaven. He takes the shape of Vaiśravaṇa and expounds the Dharma to those who are to be saved by Vaiśravaṇa. He takes the shape of the king of a small country and expounds the Dharma to those who are to be saved by the king of a small country. He takes the shape of a rich man and expounds the Dharma to those who are to be saved by a rich man. …

“Endless-Intent! This World-Voice-Perceiver Bodhisattva does these meritorious deeds. He takes various shapes, walks about many worlds, and saves the living beings [of those worlds]. Make offerings to World-Voice-Perceiver Bodhisattva with all your hearts! This World-Voice-Perceiver Bodhisattva-mahāsattva gives fearlessness [to those who are] in fearful emergencies. Therefore, he is called the ‘Giver of Fearlessness’ in this Sahā-World.”

And in gāthās:

World-Voice-Perceiver will save
All living beings from misfortunes
And from innumerable sufferings of the world
By the wonderful power of his wisdom.

He has these supernatural powers.
He employs various expedients with his wisdom.
In the ten quarters there is no kṣetra
In which he does not appear at all.

Hell, the region of hungry spirits, and the region of animals,
That is, the [three] evil regions will be eliminated.
The sufferings of birth, old age, disease and death
Will gradually be eliminated.

He sees the truth of all things and their purity.
He sees all things with his great wisdom.
He sees all things with loving-kindness and compassion.
Think of him constantly! Look up at him constantly!