Can you elaborate on the concept of destroying the 'sense of duality' and the practice of 'shaktipat' as explained in Chapter 40?

According to Chapter 40, destroying the 'sense of duality' is a fundamental spiritual achievement facilitated by Sai Baba. It refers to dissolving the illusory separation between the individual self ('me') and the divine or the Guru ('you'). When a devotee offers a full prostration and seeks exclusive refuge, Sai dissolves these separate feelings, making them one in essence, much like a river becomes one with the ocean. 'Shaktipat' is described as the direct transmission of spiritual energy, which Sai performs when His hand is placed upon a devotee's head. This powerful act is said to make the unattainable attainable, accelerating the devotee's spiritual journey.