Based on Chapter 51, what is the relationship between past merits, the grace of a Sadguru, and the destruction of a disciple's ignorance?

Chapter 51 outlines a clear spiritual progression. It posits that it is due to the merits of past lives that one obtains the grace of the Supreme Lord. This divine grace, in turn, leads a person to meet a Sadguru, an encounter which strengthens the bliss of the disciple. The chapter then connects this framework to the ultimate goal of spiritual practice: the destruction of delusion. Citing the Bhagavad Gita as an example, Chapter 51 emphasizes that the Sadguru's teachings work to destroy ignorance, which is the key outcome. The stories of devotees, like Kakasaheb's, are presented as the very medium through which this grace and knowledge are transmitted to the listener.