How does Chapter 51 use the dialogue between Krishna and Arjuna to explain the relationship between delusion and ignorance?

Chapter 51 provides a nuanced explanation by referencing the Bhagavad Gita. It highlights that at the conclusion of the Gita, Shri Krishna asked Arjuna if his "delusion" had been destroyed, not if he had attained knowledge. Arjuna's response, as cited in Chapter 51, was, "My delusion has vanished to the ends of the earth," explicitly stating the destruction of delusion rather than the attainment of knowledge. The chapter then clarifies that delusion (moha) is merely another name for ignorance and that they are essentially the same concept, just expressed with different words. This analysis underscores the idea that the removal of ignorance is the key to spiritual progress.