What are the primary obstacles that prevent someone from attaining spiritual knowledge, according to the text?

The text explains that spiritual knowledge can be hidden by ignorance, much like a clean mirror is covered by dust or fire is obscured by smoke. As detailed in Chapter 50, the primary culprits that create this veil of ignorance are Desire (Kama) and Anger (Krodha). These two are described as being attached to the soul and acting as significant hindrances to liberation and the attainment of knowledge. When the fulfillment of Desire is obstructed, it transforms into Anger, creating a cycle that is detrimental to one's spiritual progress and obscures self-luminous knowledge.