Based on the analysis in Chapter 51, what is the philosophical distinction between 'attaining knowledge' and 'destroying delusion'?

Chapter 51 presents a nuanced philosophical argument by analyzing the dialogue between Krishna and Arjuna in the Bhagavad Gita. It highlights that Krishna's question to Arjuna is about the destruction of delusion (moha), not the attainment of knowledge. Arjuna's response confirms that his delusion has vanished. According to the explanation provided in Chapter 51, this is a critical distinction. It suggests that spiritual enlightenment is not an act of acquiring something new, but rather the removal of a pre-existing negative state—ignorance. The chapter clarifies that "delusion is merely another name for ignorance," framing spiritual progress as a process of purification and removal of obstacles, which then allows one's inherent wisdom to shine through.