According to Chapter 26 of the Sai Satcharitra, what is the role of the Guru in understanding reality?

Chapter 26 emphasizes the supreme importance of the Guru in attaining spiritual enlightenment. The text explains that the physical world is an illusion, or Maya, which we mistake for reality due to ignorance, much like mistaking a rope for a snake. It is stated that in the world, only the Guru is capable of granting the knowledge of Truth to a disciple. Through the 'Great Sayings (Mahavakyas) of the Sadguru,' the light of non-dual bliss can shine forth, dissolving the illusion of the manifest world. The chapter includes a prayer to Sai Baba to grant the discrimination between the eternal and the temporary, which is a gift bestowed by the Guru.