Can you detail the transformative effects of Sai Baba's physical touch and presence as described in Chapter 6?

According to Chapter 6, the touch of Sai Baba's hand is described as wondrous and powerfully transformative. When He places His lotus-hand on a devotee's head, the accumulated impurities of many past births are instantly washed away, leaving the devotee pure. This divine contact can burn away the 'subtle body' of ego, something even the fire of dissolution cannot destroy. The chapter further explains that this blessing hand, along with the sacred Udi from the Dhuni, causes the heart to overflow with self-bliss, and just looking at His form can bring tears of joy.