Why did Damu Anna decide to visit Shirdi in person after receiving Baba's disappointing letter about the cotton trade?

Despite his initial disappointment, Damu Anna decided to visit Shirdi because the reply letter contained a strategic hint. According to Chapter 25, it was suggested to Damu Anna that "There is a difference between hearing and seeing; you should come here in person." Following this suggestion from Madhavrao, Damu Anna felt it was the right course of action. He held onto a glimmer of hope that a face-to-face meeting might change the outcome. He thought to himself, "Who knows, there might be benefit in that too. Perhaps He will give permission." This hope of personally persuading Baba prompted his journey to Shirdi.