How does Chapter 50 of the Shri Sai Satcharitra describe the unique role and nature of a Sadguru?

Chapter 50 of the Shri Sai Satcharitra explains that a Sadguru is an extraordinary progenitor, far beyond a worldly father. While a worldly father gives physical birth, the Sadguru gives a spiritual birth to the disciple by granting full initiation (Anugraha) without a physical process. The text emphasizes that there is no other true father besides a merciful Sadguru, who is described as the remover of the cycle of birth and death, a cloud of mercy, and the light of knowledge. This chapter portrays the Sadguru as the one who can truly end the endless cycle of rebirth, a feat that is extremely rare and essential for spiritual liberation.