According to the text, what is the profound difference between the role of a Sadguru like Sai Baba and that of a biological father?

Chapter 28 draws a significant distinction between the role of a father and that of a Sadguru. While a father is responsible for giving birth to the physical body, a body which is inevitably subject to death, the Sadguru's role is far greater and more compassionate. As the chapter states, the Guru has the power to remove the entire cycle of both birth and death for the devotee. This highlights the Guru's essential function in providing spiritual liberation that transcends the physical limitations and mortality associated with the body given by a father.