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

Sai Baba demonstrated his omniscience, or inner knowledge, to Laxmichand on multiple occasions as detailed in Chapter 28. First, when Laxmichand was suffering from both hunger and back pain, Baba, without being told, uttered the words, "Hunger has come, that's good. There should be medicine for back pain." Later, during a procession, Laxmichand privately thought that a cough bothering Baba might be due to an evil eye. The very next morning, Baba repeated this exact sentiment aloud, asking if an evil eye had struck him. These events, where Baba voiced Laxmichand's unspoken thoughts and physical feelings, caused Laxmichand to realize that Baba dwells in everyone's heart and knows all things, which deeply strengthened his devotion.