What specific challenges and obstacles does Chapter 17 say a person will face when trying to follow the path of Shreya?

Chapter 17 details several significant obstacles on the path of Shreya. The fundamental challenge is making the choice itself, as the text states that a dull-witted person without discrimination is easily conquered by the allure of Preya. A major obstacle is identified as 'Maya' or beginningless ignorance, described as a false imposition that must be dissolved. The chapter also explicitly warns that desires for seen and unseen enjoyments, hope, and cravings are constant obstacles that must be dug out by the roots. Finally, Chapter 17 points to lust and anger as powerful tendencies that prevent the attainment of knowledge by instantly disrupting the essential practices of listening, contemplation, and meditation.