How does Chapter 17 describe the limitations of human intellect and the essential role of a Guru in transcending worldly illusion?

Chapter 17 illustrates that worldly existence is shrouded in a powerful illusion, Maya, which is a form of beginningless ignorance. This illusion is so profound that individual effort alone is often insufficient. The text highlights the limitations of human intellect and even sacred texts by stating that the Guru can show the path to a place 'where even the sun's rays find it impossible to see... and where the steps of the Vedas cannot enter.' The Guru's role is to provide guidance beyond the reach of ordinary perception and scholarship, helping the disciple overcome deep-rooted obstacles like lust, anger, and a restless mind, which prevent the attainment of true, peaceful knowledge.