Describe the sequence of events involving Chandbhai that ultimately led to Sai Baba coming to Shirdi, as narrated in the introduction.

The introductory chapter, Chapter 0, outlines the events that brought Sai Baba to Shirdi. It began when a figure, referred to as Maharaj, miraculously helped Chandbhai find his lost horse by pointing to a hedge where it was grazing. After this, Maharaj demonstrated another miracle by striking his tongs on the ground to produce fire for his chillum. Impressed, Chandbhai insisted Maharaj stay with him, which he did for a few days. Later, when Chandbhai's wife's nephew had a wedding arranged with a girl from Shirdi, Maharaj joined the wedding procession, which is how he arrived in the village.