According to Chapter 17, what motivates a person to seek the path of Shreya, and what major obstacles must they overcome?

Chapter 17 explains that the search for Shreya, or the path of salvation, often begins after one has suffered intensely from the 'three unendurable torments' (Tritapa) of worldly existence (Samsara). When a person becomes exhausted by this sorrow, they begin to seek a way to stop the painful cycle, and this is when true human effort (Purushartha) is born. However, the path is fraught with obstacles. The chapter identifies the primary hurdle as 'beginningless ignorance' or Maya, which is a false imposition as illusory as a mirage. Additionally, one must root out obstacles like the desire for enjoyments, hope, thirst, and cravings, as well as the powerful tendencies of lust and anger, which disrupt the attainment of knowledge.