Can you explain how Sai Baba demonstrated his omniscience to the devotee Laxmichand?

Sai Baba demonstrated his omniscience to Laxmichand on multiple occasions, revealing that he knew the devotee's innermost thoughts. As detailed in Chapter 28, Baba was aware of Laxmichand's unspoken desire for a sweet called khaja, his hunger, and his back pain, addressing them directly by saying, "Hunger has come, that's good. There should be medicine for back pain." Later, when Laxmichand privately wondered if Baba's cough was due to an "evil eye," Baba voiced this exact thought the next morning. This caused Laxmichand to marvel at how Baba knew his thoughts and to realize that the Master dwells in everyone's heart, profoundly deepening his faith.