Can you describe the devotional practice that was so important to the Tarkhad family and how Babasaheb Tarkhad adopted it?

The central devotional practice for the Tarkhad family, as described in Chapter 9, was the daily worship of a photograph of Sai Baba, which was always followed by offering 'Naivedya' (a food offering). The son was so devout that he would not consume his own food without first making this offering. Although his father, Babasaheb Tarkhad, was a follower of the Prarthana Samaj and not accustomed to idol worship, he adopted this practice to allow his son to visit Shirdi. He began his service with a sincere prayer, asking Baba to accept his worship as he would his son's. He consistently offered a piece of sugar candy as Naivedya each day after his morning bath, demonstrating a significant commitment to a practice that was initially outside his own tradition.