What ailment did Amir Shakkar suffer from, and what remedy did Sai Baba prescribe?

Amir Shakkar was afflicted by a severe case of rheumatism. As detailed in Chapter 22, when he narrated his illness to Sai Baba and prayed for deliverance from his sorrow, Baba's prescribed remedy was not a medicine but an instruction. Baba told him that he should stay steadily in the Chavadi. This was a direct command, and despite the place's poor condition, Amir was to reside there as part of his treatment, following Baba's routine of going to the Chavadi every alternate night.