What reasons does the author give in Chapter 1 for performing the 'Mangalacharan' or auspicious invocations before starting the book?

In Chapter 1 of the Sai Satcharitra, the author clearly outlines the reasons for performing the 'Mangalacharan' or auspicious invocations. The text states that this practice is undertaken "for its obstacle-free completion and to obtain the grace of the desired deity." The author elaborates that "The reason for this auspicious beginning is the removal of all obstacles; the purpose is the fulfillment of the desired goal." This traditional etiquette is adopted to attain auspiciousness. The chapter describes bowing to Ganapati to destroy obstacles, to Saraswati for the ability to write, and to other deities, framing the entire act of writing as a sacred endeavor that requires divine sanction and support to succeed.