Despite the terrible conditions, what was the primary spiritual benefit for Amir Shakkar of staying in the Chavadi?

Although the Chavadi was physically uncomfortable, the primary benefit for Amir was the unparalleled access it provided to Sai Baba's presence. Chapter 22 explains that while his stay felt like imprisonment externally, it was internally a 'firm companionship with Sai.' This was a rare fortune, as the Chavadi's location was such that Baba's vision 'happened automatically without effort.' Amir could see Baba daily during His morning and evening routines and, on alternate nights when Baba stayed in the Chavadi, he could converse with Him after other devotees had left.