Based on the provided text, what were the physical conditions of the Chavadi, and why did Baba make Amir Shakkar stay there?

According to Chapter 22, the Chavadi was in a terrible physical state. The text describes it as an old, dilapidated structure built by Malik Ambar, where lizards and poisonous scorpions lived freely. It was filled with garbage, had seventeen knee-deep holes, and was plagued by rain from above and dampness from below. Despite these awful conditions, which were completely contrary to the needs of Amir Shakkar who suffered from rheumatism, Baba insisted he stay. Baba's command was to be treated as medicine, and His words were that Amir should not weigh the physical discomforts of the place. The purpose was to test his faith and obedience, which would ultimately lead to great spiritual benefit.