Chapter 3 mentions several deep spiritual subjects. What are these subjects, and what path does the chapter suggest for understanding them in the Kali Age?

Chapter 3 alludes to several profound spiritual subjects, questioning, "What is the Brahman beyond Maya? What is the means to cross it? ... What are devotion, liberation, and detachment? The duties of Varna and Ashram, the non-dual reality." The text acknowledges that these subjects are very deep. Instead of complex philosophical debate, it proposes a simple and direct path for the current Kali Age. The chapter states that "singing the stories of the Name" and, specifically, listening to the stories of the Guru, is the simple means for the supreme goal. This devotional practice is presented as the key to unlocking these deep truths.