Based on the text, what is the overall significance of the story of Cholkar and how did Baba's actions serve to strengthen his devotion?

The narrative in chapter 15 concludes by explaining that while the story of Cholkar may appear small in words, it is "very fine in quality" and demonstrates the "sweetness of devotion." The significance lies in how Sai Baba masterfully uses personal experience to show a devotee what is in their heart, thereby solidifying their faith. Baba’s words are described as priceless treasures that enter a devotee's heart, bringing "moisture to the gardens of love." By revealing knowledge of Cholkar's secret vow, Baba confirmed his faith and proved his omnipresence, an act compared to a merciful cloud quenching the thirst of a Chataka bird, which in turn refreshes the entire earth.