How did Sai Baba prove he knew people's hidden thoughts, using Laxmichand's experience as an example?

Sai Baba frequently demonstrated his omniscience, or inner knowledge, by speaking aloud the unvoiced thoughts of his devotees. The experience of Laxmichand, described in Chapter 28, provides two clear examples. First, when Laxmichand was silently craving khaja and suffering from hunger and back pain, Baba's words directly addressed his condition: "Hunger has come, that's good. There should be medicine for back pain. Now the wind of khaja has blown." Later, when Baba developed a cough, Laxmichand privately thought it might be due to an "evil eye." The very next morning, as mentioned in Chapter 28, Baba voiced a similar sentiment, confirming that He was aware of Laxmichand's mental thoughts, which the text calls an "Echo without sound."