What is the difference between knowledge and ignorance as described in the provided text?

According to the insights from Chapter 50, knowledge ('Jnana') is the profound understanding that "I am the Soul, the pure witness; purely enlightened and liberated." It is recognizing the self as Brahman and the eternal pulse of 'Consciousness is Bliss.' In contrast, ignorance ('Ajnana' or 'Avidya') is described as the attitude of seeing oneself as a "sinner, unfortunate, luckless." This state of ignorance also manifests in those whose minds are fixated on wealth, luxury, and attachments to family, preventing them from knowing their own true welfare. The text states that ignorance arises from doubt and can only be removed with the help of a Guru, which then allows knowledge to manifest.