What is the main theme introduced at the beginning of Chapter 15 of the Shri Sai Satcharitra?

Chapter 15 begins by establishing the profound significance of attaining the vision, or 'darshan', of Sai. The text explains that this privilege is granted only to those whose immense merits have come to fruition. As mentioned in this chapter, receiving Sai's darshan helps individuals overcome the threefold afflictions and provides them with the means to achieve the supreme goal, or Paramartha. The author then humbly addresses the listeners, comparing them to a vast ocean that accepts all rivers, and asks for their grace and attention to the story that follows.