Based on the provided text, what is the overall significance of Cholkar's story in demonstrating the devotee-master relationship with Sai Baba?

The story of Cholkar, while seemingly small, is presented as being exceptionally fine in quality and rich with devotional sweetness. Its significance, as explained in Chapter 15, lies in how it provides a personal, experiential demonstration of Baba's divine attributes. Baba showed Cholkar that he knew what was secretly in his heart—the vow, the financial struggles causing the delay, and the private penance of renouncing sugar. The climax, with Baba requesting sugary tea, was a priceless moment that brought "moisture to the gardens of love" in the devotee's heart. It illustrates the teaching that Baba resides within the devotee, is aware of all their thoughts and actions, and that sincere faith, even when tested by worldly difficulties, is always seen and reciprocated.