Based on Chapter 27, what is the connection between having faith in the Guru and overcoming Maya and the six passions?

Chapter 27 establishes a direct and essential link between faith in the Guru and spiritual purification. The text asserts that the subsiding of the six passions, such as lust, and the emergence of supreme love and devotion are impossible without "ultimate faith in the Guru's feet." Similarly, it states that if one wishes for the entanglement of Maya not to obstruct them, they "must surrender to Sai with singular devotion." The chapter suggests that this kind of faith is the key that unlocks the Guru's grace, which is an internal experience beyond the reach of the senses. This grace, as described in Chapter 27, is the force that dissolves worldly illusions and negative tendencies.