What was the deeper significance of Maharaj's transition from giving medicine to giving Udi?

The transition from giving medicine to giving Udi represents a significant evolution in Maharaj's spiritual methodology. Initially, he provided physical remedies for free. The introduction in Chapter 0 reveals his own explanation for the change: he stopped giving medicine and started chanting 'Hari Hari,' and in doing so, he 'met Hari.' This suggests the change was prompted by a profound spiritual realization or union with the divine. By giving Udi (ash), he shifted from offering a temporal, physical cure to bestowing a blessing rooted in divine power and faith, encouraging devotees to seek healing through spiritual rather than purely material means.