How does Chapter 48 distinguish between a teacher with only theoretical knowledge and an authentic Sadguru?

Chapter 48 draws a sharp distinction between a teacher with mere verbal knowledge and a genuine Sadguru. It notes that while some teachers can offer very sweet explanations and have vast knowledge, this is considered "verbally hollow" if not supported by personal self-experience. As the chapter states, they might give mantras but cannot guarantee the disciple's attainment. In stark contrast, a true Sadguru is defined as one who not only possesses complete verbal knowledge but is also a "giver of direct, full experience." The text from this chapter makes it clear that the taste of experience is pure and can only be manifested for a disciple by a truly experienced person.