Why are works like the Shri Sai Satcharita considered more suitable for a focused Parayan than the biographies found in Shri Dasganu Maharaj's works?

The source material from Chapter 0 clarifies this distinction. While Shri Dasganu Maharaj's works, like Shri Bhaktalilamrut, are valuable, they are not ideal for a Parayan or Saptah focused on a single saint. This is because the biographies contained within them are often very brief, sometimes spanning only two or three pages. In contrast, the Shri Sai Satcharita is a detailed, comprehensive, and poetic biography dedicated entirely to Sai Baba. This extensive focus, as noted in Chapter 0, makes it and the Brihat Guru Charitra uniquely suitable for the immersive, devotional study of a single Guru's life.