What was Amir Shakkar's illness, and what strange remedy did Sai Baba prescribe for him?

Amir Shakkar was suffering from rheumatism and sought relief from Sai Baba. As described in Chapter 22, Baba's remedy was not a physical medicine but a command to stay steadily in the Chavadi. This was a peculiar instruction, as Amir was told that Baba's word itself was the medicine. He was to reside in the Chavadi, where Baba stayed every alternate night, and was even forbidden from going to the Masjid for darshan. The cure depended on his faith and obedience to this command, despite the challenging conditions he would face.