What promise did Sai Baba make about drawing his devotees to him, and how does the story of Laxmichand in Chapter 28 illustrate this?

Chapter 28 highlights Sai Baba's promise to his devotees with the famous quote: "My person may be in distant lands, may be thousands of miles away, I will bring him like a sparrow's chick, binding a string to his feet." This divine pull is exemplified through the introduction of Laxmichand, a clerk who worked for Greek merchants in Mumbai. The chapter explicitly calls him one of Baba's "pious chicks" who was drawn to Shirdi from afar. This event is explained as the fruition of accumulated karma from many births, which ultimately leads a person to the company of saints.