How did the Patil's encounter with Baba transform him, and what does the text say about his expression of gratitude?

The Patil's encounter with Baba led to a profound transformation, turning his sorrow from disease into an ocean of joy and bliss. Chapter 13 details his immediate reaction upon being healed: he felt reborn and was so overwhelmed by the sight of Baba's face that he wept tears of love and placed his forehead at Sai's feet. He felt that he could never repay this favor and that complete surrender was his only way to show gratitude. This gratitude was not a fleeting emotion; he stayed for a month and then continued to visit Shirdi frequently. His devotion culminated in creating the 'Satya-Sai vow,' a regular practice to honor Sai, showing that his gratitude was deep, enduring, and became a cornerstone of his life.