If liberation only comes from knowledge, what does Chapter 50 say are the main obstacles and requirements on this path?

While Chapter 50 affirms the Vedic principle that "Only from knowledge comes liberation," it clarifies that this path has significant prerequisites and obstacles. A primary requirement mentioned is the destruction of sinful karma, as the dawn of knowledge is considered impossible without it. The main obstacles identified are the all-encompassing illusion of Maya, which is described as very difficult to cross, and the emergence of doubt ('vikalpa'), which can corrupt wisdom. Furthermore, the text states that a mind fixated on worldly attachments like wealth, family, and sense enjoyment possesses only ignorance, and as long as a person is without devotion, their knowledge remains covered by this ignorance.