Based on the events in Chapter 29, what is the underlying principle governing Sai Baba's seemingly unpredictable acts of charity?

Chapter 29 suggests that Sai Baba's acts of charity, while appearing unpredictable, were governed by his 'incomprehensible wisdom' and a person's destiny. The chapter first establishes his immense generosity, noting he gave abundantly and daily (verses 4-9). However, it immediately contrasts this by stating his manner was never fixed, and he did not give to everyone (verses 13-15). The key principle is revealed in verse 16, which explains that only when a person's 'auspicious time had arrived' would they receive the blessing of happiness from his hand. This implies that Baba's giving was not random but a divine act, a 'shell of fortune' bestowed only upon the fortunate at the right moment, aligning with a deeper, inscrutable plan rather than simple whim.