According to Chapter 17, what is the difference between Shreya and Preya, and why is it difficult for most people to choose the right path?

Chapter 17 of the Sai Satcharitra presents a detailed contrast between Shreya, the path of salvation, and Preya, the path of worldly joy. The chapter states that Shreya is the form of discrimination and pure knowledge, while Preya is the form of ignorance and lack of discrimination. The difficulty in choosing the right path arises because Preya is alluring to the senses. As the chapter explains, as long as one is obsessed with worldly things like wealth and sensory objects, and lacks detachment, Preya will seem sweet. Even when both paths are presented, the text notes that a "dull-witted person is conquered by Preya and embraces it," highlighting how attachment and ignorance make the choice difficult for those without discrimination.