How did Sai Baba prove he knew what Laxmichand was secretly thinking and feeling?

Sai Baba demonstrated his omniscience, or inner knowledge, to Laxmichand on multiple occasions. In one instance detailed in Chapter 28, Laxmichand was suffering from hunger and back pain while simultaneously craving a sweet called khaja. Baba, without being told, voiced his devotee's exact condition by saying, "Hunger has come, that's good. There should be medicine for back pain. Now the wind of khaja has blown." In another incident, when Baba developed a cough, Laxmichand privately worried that it might be due to an evil eye. The very next morning, Baba spoke words that mirrored this specific, unspoken thought, once again proving he was aware of the innermost thoughts of his devotees.