How does Chapter 4 describe the selfless nature and ultimate mission of saints?

Chapter 4 portrays saints as beings who are naturally liberated yet choose to incarnate on Earth for purely selfless reasons. Their purpose is not for personal gain but entirely for the sake of others, specifically to uplift the distressed and protect the humble, poor, and weak. The text describes their mission metaphorically, stating that they fill the foundation of Renunciation (Nivritti) to build the temple of Ultimate Truth. As outlined in Chapter 4, saints work within the frame of Worldly Activity (Pravritti) to easily uplift devotees. Their primary tasks are to perform the work of religion and awaken faith, and once this specific work is fulfilled, they end their incarnation.