What ailment did Amir Shakkar suffer from, and what was Sai Baba's prescribed remedy for him?

Amir Shakkar was afflicted by rheumatism, which caused his joints to seize and brought him great sorrow. When he came to Sai Baba for help, he detailed his illness and prayed for a cure. As described in Chapter 22, Baba's remedy was not a physical medicine but a specific instruction. He told Amir to stay steadily in the Chavadi. Despite the place being old, dilapidated, and filled with discomforts, Amir was to accept Baba's word as the true medicine. This unique prescription required him to endure the harsh conditions of the Chavadi for a period of nine months.