According to Chapter 6, what is the significance of the Sadguru's blessing hand?

Chapter 6 of the Sai Satcharitra explains the profound significance of the Sadguru's blessing hand. When the Sadguru, identified as Sai, places His hand on a devotee's head, it is a transformative act. This blessing hand, often accompanied by Udi from the Dhuni, fills the heart with self-bliss and love. The text poetically states that the touch of the Guru's hand can burn away the subtle body or ego, which even the fire of dissolution cannot destroy. Furthermore, as described in this chapter, placing His lotus-hand on the head washes away the accumulated impurities of many births, purifying Sai's loving devotees.