What is the role and importance of a Guru as explained in the philosophy of Chapter 26?

According to the teachings in Chapter 26, the Guru holds a supremely important role in a disciple's spiritual journey. The text explicitly states that in the world, only the Guru is capable of granting the knowledge of Truth to a disciple. The Guru's words are the catalyst for awakening from the 'dream' of the illusory world. The author prays to the Sadguru Sai to make his intellect turn inward and grant the ability to discriminate between the eternal and the temporary. The chapter emphasizes that unshakeable faith in the Guru's words is essential, as this is how the illusory world dissolves and the light of non-dual bliss shines forth.