How does Chapter 4 describe the selfless mission and purpose of saints who come to the mortal world?

In Chapter 4 of the Sai Satcharitra, saints are portrayed as inherently liberated souls whose incarnation is entirely for the sake of others, with no personal self-interest. Their primary mission is to uplift the distressed, protect the humble and the poor, and destroy irreligion. The text explains that they build the 'temple of Ultimate Truth' on the 'foundation of Renunciation' and work within the 'frame of Worldly Activity' to easily elevate their devotees. Their work involves awakening faith and reinforcing religion, and once their specific purpose is fulfilled, they conclude their incarnation.