What are the main obstacles to knowledge, and how are they illustrated in the text?

According to Chapter 50, the primary obstacles that hide self-luminous knowledge are Desire (Kama) and Anger. The text uses several vivid analogies to illustrate how these forces work. Just as a clean mirror is obscured by a layer of dust or the light of a fire is hidden by smoke, knowledge is concealed by lust and anger. It is also compared to how Rahu eclipses the moon or how moss can completely cover the surface of water. This covering, referred to as Maya, can corrupt the intellect of even the most learned individuals, causing them to fall from their path despite knowing the correct remedies.