What is the primary purpose and overall structure of the first chapter of the Sai Satcharitra?

The first chapter of the Sai Satcharitra is titled 'Mangalacharan' (Invocations), and its primary purpose is to ensure the obstacle-free completion of the task of writing the book. As mentioned in Chapter 1, this auspicious beginning is performed to remove all obstacles and fulfill the desired goal of narrating Sai's life. The structure consists of a series of salutations to various deities, beginning with Lord Ganesha, the remover of obstacles. This is followed by invocations to Goddess Saraswati for wisdom, the Hindu trinity of Brahma, Vishnu, and Shankar, the family deity Narayana, and finally, Sadguru Sainath himself, who is ultimately revealed to be the embodiment of all these divine forms.