What qualities define a Sadguru, according to the teachings in Chapter 28?

Chapter 28 of the Shri Sai Satcharitra outlines the essential qualities that define a true Sadguru. It states that a Sadguru like Sai is proficient in both Shabda-Brahma (the divine word) and Para-Brahman (the Supreme Being). The chapter further clarifies that even one who is simply established in their own true nature possesses the quality of a Sadguru. Ultimately, the most significant quality highlighted is the Guru's compassion, which goes beyond a father's love by working to remove the disciple's cycle of birth and death, offering spiritual liberation.