Chapter 6 speaks about the "touch of the Guru's hand." Can you explain the significance and effects of this touch as described in the text?

Chapter 6 of the Sai Satcharitra details the wondrous and transformative power of the Sadguru's touch. It is described as capable of burning away the subtle body, or ego, into ashes—something that even the fire of dissolution cannot achieve. According to the text, when Sai Baba places His lotus-hand on a devotee's head, the accumulated impurities of many births are washed away, making the devotee pure. This divine touch, often accompanied by Udi, is said to grant stability to wandering thoughts, overflow the heart with self-bliss, and cause tears of love to pour from the eyes, as mentioned throughout the early verses of Chapter 6.