Why did Sai Baba accept Dakshina from one man from Goa but reject a larger amount from his companion?

The incident involving the two visitors from Goa, detailed in Chapter 36, is a classic example of Sai Baba's inscrutable actions. The chapter explains that Baba requested and accepted fifteen rupees from one man but flatly rejected an unsolicited offer of thirty-five rupees from the other. This created an appearance of partiality that surprised the onlookers. Madhavrao (Shama) was so perplexed that he asked Sai for an explanation. While this part of Chapter 36 sets up the mystery and demonstrates that Baba's actions had deeper meanings, it does not provide the immediate reason for his decision, leaving the reader to ponder the spiritual lesson contained within the act.