What is the relationship between a devotee's actions and the grace they receive from the Guru?

The relationship is one of direct correspondence, as explained in Chapter 19. The Lord's determination is summarized by the words 'Ye yatha mam' (As they approach me...), which 'put the entire burden on one's actions.' This means the grace and benefits received are proportional to the devotee's practice and devotion. While immense wisdom and faith are valuable, gaining 'Guru-strength like Sai’s' requires the devotee's active participation. A devotee must surrender with an undivided heart and put in the effort, or 'Zor'. Only then does the Guru stand behind them with the bowl of milk, signifying that divine support and grace follow the sincere efforts of the practitioner.