Based on this chapter, what was the relationship between a devotee's actions and receiving material blessings from Sai Baba?

Chapter 29 presents a complex relationship between devotion and receiving material blessings. While devotees like the group from Madras performed devotional singing, the text clarifies that receiving money was not a direct reward for such acts. It states that though Baba was merciful, he did not give to all alike. The chapter suggests that receiving a blessing from Baba's hand was a matter of destiny, a "shell of fortune" obtained only by the fortunate whose "auspicious time had arrived." This implies that material gifts were not a transaction but a manifestation of Baba's inscrutable will and grace, separate from the devotee's specific actions.