What are the primary obstacles that prevent the attainment of knowledge, according to the teachings in Chapter 17?

Chapter 17 identifies several key obstacles to attaining knowledge. The text points to beginningless ignorance, or Maya, as a great obstacle that must be dissolved. It also states that desires for seen and unseen enjoyments, hope, and cravings must be dug out by their roots. Specifically, the chapter mentions that lust and anger are tendencies that instantly disrupt the spiritual practices of listening, contemplation, and meditation, thereby preventing knowledge. Finally, it notes that one who is always restless with a heart distracted by the greed of the senses will not find peace, even if they are learned.