Can you elaborate on the specific incident where Laxmichand thought about an 'evil eye' in relation to Baba's cough?

This incident serves as a subtle yet powerful testament to Sai Baba's omniscience. According to Chapter 28, Laxmichand was attending a Chavadi procession when he noticed Baba had developed a cough. A fleeting thought arose in Laxmichand's mind that the cough might be the result of someone's 'evil eye'. This was a purely internal speculation that he did not share with anyone. The next morning, when he went to the masjid, Baba spoke words that were remarkably similar to Laxmichand's private thought from the previous night. The text describes this as an 'echo without sound,' confirming for Laxmichand that Baba possessed the inner knowledge to perceive even the most silent thoughts of his devotees.