How did Sai Baba demonstrate his knowledge of Laxmichand's physical suffering?

According to the narrative in Chapter 28, Laxmichand was feeling particularly restless due to intense hunger and back pain. While he suffered silently, Sai Baba perceived his discomfort without being told. The text recounts Baba's words: "Hunger has come, that's good. There should be medicine for back pain. Now the wind of khaja has blown; do the arati quickly." These words were a direct echo of Laxmichand's internal state, proving to him that Baba possessed profound inner knowledge, or 'antarjnan,' and was aware of his devotees' unspoken pains and thoughts.