Can you provide a summary of the main teachings found in Chapter 48 of the Sai Satcharitra?

Chapter 48 begins with a listener's question: 'Is Shri Sai a Guru or a Sadguru?' In response, the chapter outlines the characteristics of a true Sadguru. It contrasts them with teachers who possess only scriptural knowledge or perform rituals, labeling such knowledge as 'hollow' without self-experience. The main teaching is that a Sadguru is a giver of direct, full experience, is free from ego, and holds profound, selfless love for the disciple, even being willing to sacrifice for them. As Chapter 48 explains, a Sadguru's abode is a place of supreme peace where all are treated equally, confirming that Sai Baba embodies these very signs.