How does the scripture compare Sai Baba to other saints and to the philosopher's stone?

Chapter 4 draws several powerful comparisons to illustrate Sai Baba's spiritual stature. Initially, saints in general are compared to a philosopher's stone, which turns iron into gold. However, the text states that saints are even more extraordinary because they give their own form, meaning Self-realization, to their devotees. Specifically for Sai, Chapter 4 likens his presence in Shirdi to that of other great saints in their respective holy places, such as Damaji in Mangalwedha and Samarth Ramdas in Sajjangad. This places him in the highest echelon of spiritual masters who sanctify the locations they inhabit.