According to Chapter 25, why did the author feel empowered to write the Shri Sai Satcharitra despite feeling unqualified?

In Chapter 25, the author openly admits to lacking the authority, knowledge, and erudition to write the life story of Shri Sai. He refers to himself as a "poor soul" and an "ignorant person." However, he was empowered by a direct command from Sai Baba to "Keep the records." The chapter explains that this divine inspiration instantly endowed his "meager intellect with courage and special knowledge." He believed that Sai Baba himself would accept the book for the salvation of his devotees, transforming the act of writing from audacious presumption into a blessed service ordained by the Guru.