Why is 'direct, full experience' considered so crucial for a Sadguru, based on the teachings in Chapter 48?

Chapter 48 places immense importance on 'direct, full experience' as the defining quality of a Sadguru. The text argues that verbal knowledge alone, while potentially sweet-sounding, is 'verbally hollow' and lacks the power to truly transform a disciple. As this chapter explains, a teacher 'who does not have experience himself, what will he give to the disciple?' The taste of spiritual experience is described as pure, and only someone who has personally tasted it can manifest it for others. Therefore, the authority to enlighten disciples is reserved for one who is a 'giver of direct, full experience.'