How does Chapter 51 use the dialogue between Krishna and Arjuna from the Bhagavad Gita to explain the concept of 'delusion'?

Chapter 51 draws a significant parallel to the Bhagavad Gita to illustrate the destruction of delusion (moha). It references the end of the Gita's eighteenth chapter, where Shri Krishna specifically asks Arjuna if his delusion has been destroyed, rather than if he has attained knowledge. Arjuna confirms this, stating, "My delusion has vanished." As explained in Chapter 51, this distinction is crucial because delusion and ignorance are seen as synonymous. The chapter reinforces this by quoting Arjuna from the Gita's eleventh chapter: "By the words You have spoken, this delusion of mine has vanished," emphasizing that a Guru's teachings are the key to dispelling spiritual ignorance.