According to Chapter 48 of the Sai Satcharitra, what are the defining characteristics of a true Sadguru?

Chapter 48 of the Sai Satcharitra provides a detailed description for a listener wondering about the signs of a true Sadguru. It states that a Sadguru is not merely someone with scriptural knowledge or one who can explain Vedanta. Instead, a Sadguru is one who possesses direct, full self-experience and has the authority to enlighten disciples by imparting that experience. A key characteristic, as explained in this chapter, is a complete lack of egoism; the Sadguru does not see the disciple as insignificant but rather views them as the Supreme Brahman, showing them fatherly love. Furthermore, a true Sadguru never desires their livelihood from a disciple and is even willing to sacrifice their own body for the disciple's sake. Their abode is a storehouse of supreme peace where the small and great are treated as equals.