What's the difference between true knowledge and ignorance according to chapter 50?

Chapter 50 explains that true knowledge, or 'Vidya,' is the eternal understanding that 'I am Brahman,' the pure, enlightened, and liberated soul. It is the realization of being the treasure of 'Consciousness is Bliss.' In contrast, ignorance, or 'Avidya,' is the negative attitude of seeing oneself as a sinner, unfortunate, or luckless. This chapter further clarifies that even a 'wise' person who is deluded by attachments to money, family, and sense enjoyment, and who lacks devotion, is also considered to be living in a state of ignorance.