What does the preface say about the teachings of Saint Francis of Assisi in relation to the Sadguru tradition?

The provided text from the preface (Chapter 0) does not mention Saint Francis of Assisi or his teachings. The text focuses on the principle within Aryavarta, originating from Vedic times, that salvation is unattainable without the grace of a Sadguru. It emphasizes that a Sadguru can come from any caste or religion and can even be a family member or a book. For a detailed description of a Sadguru's nature and the path to attaining knowledge through their service, the preface directs the reader to the commentary on the Shrimad Bhagavad Gita by Lord Samarth Sadguru Dnyaneshwar Maharaj.