According to Chapter 48, what are some things that do NOT automatically make someone a Sadguru?

Chapter 48 of the Shri Sai Satcharitra addresses a listener's query about the nature of a Sadguru and clarifies that certain attributes do not in themselves define one. For instance, the chapter states that wise men do not consider someone a Sadguru simply because they have studied the Vedas, possess knowledge of the six Shastras, or can explain Vedanta. Similarly, practices like controlling the breath (Pranayama), wearing heated marks (Taptamudra), or giving captivating talks about Brahman are not sufficient qualifications. The text emphasizes that this external knowledge is different from the profound, experiential wisdom of a genuine Sadguru, which is the true hallmark.