What are the specific transformative effects of the Sadguru's hand on a devotee's head as described in Chapter 6?

Chapter 6 details several wondrous effects of the Sadguru's touch. When Sai Baba places His blessing hand on a devotee's head, it is said to have the power to burn the subtle body, or ego, into ashes—something even the fire of dissolution cannot do. This act washes away the accumulated impurities of many births, making the devotee pure. The text also mentions that this touch can grant stability to a mind prone to idle gossip and nonsensical speech. Ultimately, as described in this chapter, the touch of the Guru's hand fills the heart with self-bliss, causing tears of love and joy to flow from the eyes.