According to Chapter 50, how does the role of a Sadguru differ from that of a worldly father?

Chapter 50 presents a profound distinction between a worldly father and a Sadguru. While a worldly father gives physical birth through the womb, the Sadguru is described as an extraordinary progenitor who gives a spiritual birth to the disciple. As detailed in the chapter, the Sadguru achieves this without any physical process, instead granting full initiation, or 'Anugraha'. This spiritual birth, initiated by the Sadguru, is what ultimately helps the disciple transcend the cycle of birth and death, a feat the worldly father cannot facilitate.