Based on Chapter 48, what is the significance of 'self-experience' for a Sadguru, and why is verbal knowledge alone considered 'hollow'?

In Chapter 48 of the Sai Satcharitra, 'self-experience' is presented as the most crucial attribute of a Sadguru. The text argues that while verbal knowledge and eloquent explanations of principles may seem correct and sweet, they are "verbally hollow" without the backing of direct realization. The chapter poses the question, "One who does not have experience himself, what will he give to the disciple?" This highlights the core idea that a Sadguru's primary purpose is to be a "giver of direct, full experience," which is the only way to genuinely enlighten a disciple. The "taste of experience" is described as pure, and only an experienced person can manifest and transmit it, making it the ultimate litmus test for a true master.