What is the role of a Guru as described in the philosophical section of Chapter 26?

According to the teachings in Chapter 26, the Guru is indispensable for spiritual awakening. It is stated that in the world, only the Guru is capable of granting the disciple the knowledge of Truth. The Guru's words are the catalyst for achieving a state of wakefulness where the illusion of the world dissolves. The author prays to the Sadguru, Sai Baba, to turn his intellect inward and grant him the ability to discriminate between the eternal and the temporary. The chapter emphasizes that when the Guru-Soul, who is God, is pleased, one can realize the true, self-luminous nature of the Self.