What was the incident involving Baba's cough and Laxmichand's thought about the 'evil eye'?

During a Chavadi procession in Shirdi, Sai Baba developed a cough. A devotee named Laxmichand, who was present, witnessed this and had a private thought. He worried that the cough was not natural and might have been caused by someone's 'evil eye' affecting Baba. As Chapter 28 narrates, this was merely a fleeting thought in Laxmichand's mind. The miracle occurred the following morning when Laxmichand went to the masjid. Sai Baba spoke words that directly mirrored Laxmichand's secret thought about the evil eye, demonstrating once again his profound ability to know the unexpressed thoughts of his devotees, which the text describes as an 'echo without sound'.