Why is a Guru's grace considered more important than scholarship alone in creating a spiritual work like the Shri Sai Satcharita?

A Guru's grace is deemed paramount because, as explained in Chapter 0, a spiritual book created on the strength of scholarship and intelligence alone will not last eternally. Such a work would lack the essential qualities of inspiration, grace, and divine gift. Without this grace, a book cannot leave a lasting impression on seekers or instill true faith. The Shri Sai Satcharita is presented as a prime example of a 'grace-filled' (Prasad-janya) book, whose very existence is the fruit of Baba's grace upon its author, making it an eternal and beloved text.