I asked about a specific saint, but you didn't have any information. Why is the Shri Sai Satcharita so limited in its scope that it doesn't mention other holy figures?

The focused scope of the Shri Sai Satcharita is a deliberate choice rooted in a specific spiritual philosophy. The preface in Chapter 0 explains that while writing the biographies of many saints is a form of spiritual 'Guru service,' it is considered 'one-sided or partial.' The author posits that it is 'difficult, or rather impossible, to attain the ultimate spiritual goal' through that method alone. Instead, the preface argues that the 'best and most certain service' for achieving salvation is to write the biography of one's own Sadguru and study it with unwavering devotion. Therefore, the book's concentration on a single figure is presented not as a limitation, but as the most direct path to spiritual attainment.