According to the text, what is the role of a Guru compared to a father, and what defines a true Sadguru?

As detailed in Chapter 28, the compassion of a Guru surpasses that of a father. While a father gives birth to the physical body, which is inevitably subject to death, a Guru has the power to remove the devotee from the entire cycle of birth and death. The text also outlines the qualities that define a Sadguru. It mentions that even a great scholar isn't a Sadguru if they cannot impart their knowledge to disciples. A true Sadguru is one who is established in their own true nature and is proficient in both Shabda-Brahma (the divine word) and Para-Brahman (the Supreme Being).