Why was the Tarkhad's son so worried about leaving for Shirdi, even though his mother wanted to go?

The Tarkhad's son was a supreme devotee of Sai Baba, and his primary concern was the uninterrupted continuation of his daily worship. According to Chapter 9, his daily routine involved performing worship of Sai's photograph with his body, speech, and mind, and most importantly, offering Naivedya (a food offering). He held this vow so sacred that he would not eat without first making the offering. His worry, as stated in the text, was, "Who will perform the worship at home regularly?" He was particularly concerned because his father was a follower of the Prarthana Samaj, and the son felt it wouldn't be right to entrust the practice of idol worship to him, creating a "great puzzle" for him.