I read that Sai Baba was aware of Laxmichand's physical ailments. How was this omniscience demonstrated in the text?

The narrative in Chapter 28 details an incident where Laxmichand was feeling particularly restless, suffering from both hunger and back pain. At that very moment, Sai Baba's words directly mirrored his condition. Baba said, "Hunger has come, that's good. There should be medicine for back pain. Now the wind of khaja has blown." This statement was a perfect echo of Laxmichand's private suffering and thoughts, astonishing him and showcasing what the text calls Baba's "inner knowledge." It was a clear verbalization of what was happening internally to the devotee.