How does Chapter 48 differentiate between a teacher with only verbal knowledge and an authentic Sadguru?

Chapter 48 draws a critical distinction between superficial knowledge and true enlightenment. A teacher might offer very sweet explanations of principles and possess vast verbal knowledge, but if they lack self-experience, this is described as 'verbally hollow'. In contrast, a true Sadguru is defined as one who is a 'giver of direct, full experience' and possesses the authority to enlighten disciples. As the text from this chapter pointedly asks, 'One who does not have experience himself, what will he give to the disciple?' Thus, direct, personal experience is presented as the essential, non-negotiable quality of a Sadguru.