How does Chapter 27 of Sai Satcharitra describe the relationship between a devotee's spiritual progress and the Guru's feelings?

Chapter 27 of Sai Satcharitra provides insight into the reciprocal nature of the Guru-devotee relationship. It explains that the Guru finds "supreme joy" in whatever constitutes the devotee's own happiness. As the devotee turns more towards the spiritual path and makes progress, the Guru feels an increasing sense of wonder and satisfaction. The text from Chapter 27 contrasts this genuine spiritual pursuit with the fleeting nature of worldly attachments, referring to "Body, home, son, wife" as the "business of 'I' and 'mine'" and dismissing them as momentary Maya. This highlights that the Guru's true pleasure is derived not from the devotee's material success, but from their sincere spiritual awakening and devotion.