According to the preface, what was the author's ultimate wish for the Shri Sai Satcharita, and what spiritual benefit is promised to its readers?

The preface in Chapter 0 explains the author's profound desire for the Shri Sai Satcharita. His wish was that the book would be studied and recited daily through numerous Parayans and Saptahs, similar to the revered Guru Charitra. The text describes the book as a 'sweet, spiritual treat' for devotees. The promised spiritual benefit for those who consume this treat with faith and heart is immense. As Chapter 0 elaborates, by engaging in this 'sacrifice of knowledge' (Jnana-yagna), seekers satisfy Shri Sai-Paramatma and are assured that after the death of their physical body, they will become one with the divine Shri Sai-Paramatma.