What is the mission of a saint regarding 'Nivritti' (Renunciation) and 'Pravritti' (Worldly Activity) as explained in Chapter 4?

Chapter 4 provides a nuanced description of a saint's mission, highlighting their role in balancing spiritual and worldly life. The text states that saints "fill the foundation of Renunciation (Nivritti) and build the temple of Ultimate Truth." This signifies their work in establishing the core principles of spiritual detachment. Simultaneously, it says they work "around the frame of Worldly Activity (Pravritti)" to easily uplift devotees. This means they do not demand complete withdrawal from the world but rather help people find spiritual elevation while engaged in their daily lives, ultimately performing the work of religion and awakening faith.