What is the primary purpose of the invocations (Mangalacharan) described at the beginning of the Sai Satcharitra?

According to Chapter 1 of the Sai Satcharitra, the primary purpose of the invocations, or Mangalacharan, is to ensure the obstacle-free completion of the task at hand, which in this case is the writing of the book. The text explains that this auspicious beginning is a traditional etiquette performed to obtain the grace of the desired deity and fulfill the intended goal. The author offers salutations to various deities, including Lord Ganesha, Goddess Saraswati, and Sadguru Sainath, explicitly stating that the reason for this is the removal of all obstacles. This practice is seen as essential for a successful outcome, as mentioned throughout the chapter.