What is the significance of performing a 'Parayan' of a Guru's biography, and why are some texts better for this than others?

Performing a 'Parayan,' or a devotional reading, of a detailed poetic Guru biography is described as a form of Guru service. Chapter 0 notes that while some works exist, like those by Shri Dasganu Maharaj, they are not comprehensive enough for a 'Parayan' of a single saint. Therefore, a detailed, comprehensive work like the Shri Sai Satcharita is considered ideal. By studying and performing 'Parayans' of such a text, devotees not only perform Guru service but also gain merit and achieve the purpose of their lives, making it a highly significant spiritual practice.