How did Sai Baba's instructions for Amir Shakkar's rheumatism serve as a test of faith?

Sai Baba's treatment for Amir Shakkar's rheumatism was a profound test of faith rather than a conventional medical remedy. Chapter 22 recounts that Baba instructed him to stay in the Chavadi, a place with conditions directly opposed to what one would recommend for rheumatism—it was damp, cold, and windy. This prescription forced Amir to rely solely on Baba's word as his medicine. Despite the external hardships, which included being forbidden from even visiting the Masjid, Amir maintained his internal faith. His nine-month stay, described as external imprisonment but internal companionship with Sai, demonstrated that the true healing was in surrendering to Baba's will, proving that his faith was stronger than his physical suffering and logical doubts.