How does Chapter 4 describe the intrinsic nature of saints and their ultimate mission on Earth?

In Chapter 4, saints are described as being naturally liberated beings who are always ready to uplift the distressed and downtrodden. Their incarnation is not for any personal gain but is purely for the sake of others, as the text states they have no self-interest. Their mission is to protect the humble, the poor, and the weak, and to destroy irreligion. The chapter explains that they build the 'temple of Ultimate Truth' on the 'foundation of Renunciation' and help devotees navigate worldly activities. Their work involves restoring religion and awakening faith, and once this specific mission is fulfilled, they conclude their incarnation.