Why was a new, comprehensive biography like the Shri Sai Satcharita considered necessary, even though other works about saints already existed?

The preface in Chapter 0 argues for the necessity of a work like the Shri Sai Satcharita by pointing out the limitations of existing texts. While earlier works like Shri Dasganu Maharaj's 'Shri Bhaktalilamrut' existed, they were not considered comprehensive or detailed enough for a focused Parayan or Saptah of a single saint's life, often covering a biography in just two or three pages. The text notes a general scarcity in Maharashtra of detailed, poetic, and famous works suitable for such devotional reading. Therefore, the Shri Sai Satcharita was created to fill this void for the modern saint Shri Sai Baba, providing a complete and inspirational biography.