Why does the Satcharitra focus so exclusively on Sai Baba when there are so many other great saints? It seems to ignore many others.

The exclusive focus on Sai Baba in the Satcharitra is a deliberate method to achieve a specific spiritual goal: non-dual devotion. Chapter 50 explains that the book's purpose is not to compare Sai to others, noting that even the sun and moon are inadequate comparisons because they wane or set, while "Sai is forever complete." The text repeatedly emphasizes achieving a state where the reader, the act of reading, and the subject become one. The goal is for the listener to "perceive Sai in their hearts" and for "all the tendencies of the senses" to "become Sai-form." By focusing intensely on Sai, the Satcharitra aims to dissolve the sense of separation and help the devotee realize the all-pervading nature of the divine, as embodied by Sai, rather than creating a comparative study of different saints.