What made Amir Shakkar decide to leave the Chavadi, and what was the immediate event that occurred after he left?

As detailed in Chapter 22, after a prolonged stay, Amir Shakkar grew weary of the confinement in the Chavadi. The text explains that his mind began to desire freedom, and he started to perceive his situation as a prison. This thought, "Enough of this prison!", prompted him to leave his assigned place without seeking Sai Baba's permission. He traveled to Kopergaon and stayed in a Dharmashala. The immediate consequence described is a miraculous event: he encountered a Fakir on the verge of death from thirst, and the moment Amir gave him water, the Fakir's body became lifeless.