The text emphasizes 'direct, full experience' as a key quality of a Sadguru. Can you elaborate on what Chapter 48 says about the importance of experience versus mere verbal knowledge?

Chapter 48 of the Shri Sai Satcharitra places immense importance on direct experience over mere verbal knowledge in defining a Sadguru. The text explains that while verbal explanations of principles can be very sweet and vast, such knowledge is considered 'verbally hollow' if it lacks the foundation of self-experience. As this chapter clarifies, the taste of experience is pure, and only a person who has it can manifest it for others. Therefore, someone who does not have direct experience themselves has nothing to give a disciple and should never be called a Sadguru, as they lack the authority to truly enlighten others.