Can you explain the Guru-devotee relationship as depicted in Chapter 27 of the Sai Satcharitra?

Chapter 27 beautifully illustrates the reciprocal nature of the Guru-devotee relationship. It states that the Guru finds supreme joy in the devotee's own happiness and feels wonder as the devotee progresses on the spiritual path. The text emphasizes that true devotion requires ultimate faith in the Guru's feet, which is the key to subduing the six passions like lust and experiencing supreme love. As mentioned in Chapter 27, this awakening of the Guru's grace is an internal experience, beyond the reach of the senses, which can only be attained through the Sadguru. The chapter portrays the Guru as a wish-fulfilling tree of liberation, guiding the devotee away from the illusion of Maya.