According to Chapter 50, how is a Sadguru considered a superior 'father' compared to a worldly father?

Chapter 50 presents a profound view on the role of the Sadguru, distinguishing him from other father figures. The chapter acknowledges the worldly father as the progenitor who gives physical birth. However, it elevates the Sadguru as an 'extraordinary progenitor.' As explained in the text, the Sadguru gives birth to his disciple not through a physical act but by granting full initiation, or 'Anugraha'. This spiritual birth, which happens 'without spending a drop of seed, without the lower birth canal,' is what makes the Sadguru a true father who can guide the disciple beyond the cycle of birth and death. This spiritual parentage is considered supreme because, unlike the worldly father who gives physical life, the Sadguru provides the path to end the endless cycle of rebirth.