How does Chapter 50 suggest one can overcome ignorance and attain true knowledge?

Chapter 50 explains that to attain true knowledge ('Jnana'), which leads to liberation, one must first overcome ignorance ('Ajnana'). The text emphasizes that ignorance, which arises from doubt, cannot be removed without a Guru. The process involves first understanding what ignorance is. By removing it with a Guru's help, the mind becomes purified. Only after this purification and the destruction of sinful karma can the dawn of knowledge occur. As stated in Chapter 50, once the mind is purified, infinite 'knowledge' will manifest, ultimately leading to a state of non-dual Samadhi.