What was Baba's specific verbal instruction to Amir regarding the poor conditions of the Chavadi, and how did this instruction function as his 'medicine'?

Sai Baba's 'medicine' for Amir's rheumatism was His word, and He gave very specific instructions on how to handle the difficult environment. Chapter 22 recounts Baba's firm words: "Wind, rain, or dampness, whether the place is high, low, or deep—do not weigh them." The medicine was to cultivate a state of mind that was indifferent to external hardships. By accepting this command, Amir's faith was the true remedy. Though all external conditions were contrary, his internal faith allowed him to stay there happily for nine months, making Baba's word the ultimate Prasad and medicine.