What was Shri Saraswati Gangadhar's personal connection to the subject of his biography, Shri Narsimha Saraswati Maharaj?

The text reveals a profound ancestral connection between the author and the spiritual master he wrote about. Chapter 0 explains that Shri Narsimha Saraswati Maharaj had given a boon to one of Shri Saraswati Gangadhar's ancestors, Shri Sayandev of the Sakhare family. This boon prophesied that 'My constant service will be performed by your descendants.' Shri Saraswati Gangadhar was the fifth descendant from Shri Sayandev in this lineage, and his act of writing the Guru biography is presented as the fulfillment of this ancestral duty and divine service.