Why was staying in the Chavadi so difficult for Amir Shakkar?

The source material in Chapter 22 paints a very grim picture of the Chavadi where Amir Shakkar was told to stay. The building was ancient, dilapidated, and a place where lizards and poisonous scorpions lived freely. It was filled with garbage and had seventeen knee-deep holes. Amir had to endure rain from above and dampness from below, along with a 'total chaos of wind and cold.' The text even mentions that lepers stayed there, describing the experience of living with these troubles as a 'pilgrimage of a lifetime,' which made Amir miserable.