According to the Satcharitra, what makes Shirdi so special for Sai's followers, and how does Baba guide those who surrender to him?

For the devotees of Sai, Shirdi is considered the most sacred of all holy sites and pilgrimages. Chapter 27 emphasizes that the opportunity to come to Shirdi and be in the company of Baba is a matter of great fortune and luck. The text states that for whichever devotees have surrendered to him, Sai shows the true and beneficial path to help them accomplish their purpose. This guidance is a form of Guru's grace, and the chapter suggests that performing a recitation of the Satcharitra, which contains these holy accounts, is itself a supreme means of attaining that very grace from the Guru.