What is the fundamental difference between the paths of Shreya and Preya as explained in Chapter 17 of Sai Satcharitra?

According to Chapter 17 of the Sai Satcharitra, the paths of Shreya and Preya are fundamentally opposite, like light and darkness. Shreya is described as the path of salvation, representing pure Knowledge (Vidya) and discrimination, which aligns with a person's true self-interest. In stark contrast, Preya is the path of worldly joy, representing pure Ignorance (Avidya) and a lack of discrimination. The text states that he whose mind runs toward Preya falls away from his true purpose. While the wise are not deluded by Preya, the ignorant find no appeal in the path of Shreya.