How does Chapter 30 describe the reciprocal relationship between a saint's duty and a devotee's faith?

Chapter 30 portrays a deep, reciprocal connection between a saint's role and a devotee's devotion. It begins by stating that the "task of uplifting one's own devotees is always unavoidable for saints," positioning it as a fundamental duty. This divine responsibility is then met and activated by the power of the devotee's faith. As described in the chapter, it is the devotees' devotion that draws the formless (Nirguni) divine into a perceptible form (Saguni). Furthermore, the text highlights that Sai "knows completely the heart's desires of His own devotees" and fulfills them. This illustrates a dynamic where the saint's inherent mission to uplift is realized through the devotee's faith, remembrance, and trust.