What is the significance of 'direct experience' in the definition of a Sadguru provided in Chapter 48?

In Chapter 48, the concept of "direct experience" is presented as the most critical element in defining a Sadguru. The text argues that extensive verbal knowledge, while impressive, is ultimately "verbally hollow" without the backing of personal realization. It poses the rhetorical question: What can a guru who lacks experience themselves possibly give to a disciple? The chapter unequivocally states that someone without direct experience should never be called a Sadguru. The authority to truly enlighten a disciple is reserved for the one who is a "giver of direct, full experience," making this the non-negotiable criterion that separates a true Sadguru from all other teachers.