According to Chapter 48, what is the crucial difference between a genuine Sadguru and someone who only possesses scholarly knowledge?

Chapter 48 of the Shri Sai Satcharitra draws a sharp distinction between a true Sadguru and those who merely possess verbal or scriptural knowledge. It states that individuals who can explain Vedanta, control their breath, or give eloquent talks about Brahman are not necessarily Sadgurus. The text criticizes knowledge without personal realization as 'verbally hollow.' The crucial differentiator, as explained in Chapter 48, is direct self-experience. A true Sadguru is described as one who not only has complete verbal knowledge but is also a giver of direct, full experience. The chapter poses a rhetorical question: one who does not have experience themselves, what can they possibly give to a disciple? Therefore, direct experience is the non-negotiable hallmark of a Sadguru.