Why did Amir agree to stay in the miserable Chavadi for nine months, especially with his rheumatism?

Despite suffering from rheumatism and the Chavadi's appalling conditions, Amir Shakkar stayed there for nine months out of his profound faith in Sai Baba. As Chapter 22 explains, Baba's firm words were his only medicine. Baba instructed him not to weigh the negative aspects like wind, rain, or dampness. Amir accepted Baba's command as the 'Great Prasad' and His word as medicine, which allowed him to stay there happily. The text emphasizes that while all external conditions were contrary to his health, his internal and certain faith ensured that everything went well for him during his ordained stay.