How does Chapter 50 describe the role of a Sadguru, and why is he considered superior to a worldly father?

Chapter 50 of the Shri Sai Satcharitra explains that a Sadguru is an extraordinary progenitor who gives a spiritual birth to his disciple. While a worldly father gives physical birth through the womb, the Sadguru grants full initiation (Anugraha) without a physical act, leading the disciple away from the cycle of birth and death. The text states that while one may have many parents over millions of births, a merciful Sadguru is the true father who can end this cycle. As the chapter notes, he is the remover of birth and death and a cloud of mercy, making his role profoundly spiritual and superior.