What is the main question addressed at the beginning of Chapter 48, and what does it say about who is *not* a Sadguru?

Chapter 48 begins with a listener wondering whether Shri Sai is a Guru or a Sadguru. To address this, the chapter first clarifies what a Sadguru is not. It states that wise people do not consider someone a Sadguru merely because they have studied the Vedas or Shastras, can control their breath (Pranayama), or deliver pleasing talks about Brahman. These initial distinctions, laid out at the start of Chapter 48, set the stage for defining the true characteristics of a Sadguru.