What does the text reveal about the geographic scope of Sai Baba's influence and the lasting importance of his Samadhi?

The text emphasizes that while Shirdi was the center of his physical life, Sai Baba's field of influence was incredibly vast and not confined to one region. Chapter 4 states that his reach extended across Punjab, Calcutta, Hindustan, Gujarat, the Deccan, and Kanara. Following his physical departure, his Samadhi in Shirdi became a focal point of immense spiritual power. It is described as "the gathering of all saints," and it is believed that for those who tread the path to his Samadhi, the "knots of the soul are cut at every step," signifying profound spiritual liberation and fulfillment for the visiting devotees.