What is the primary distinction 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 of completely opposite natures, like light and darkness. Shreya is described as the path of salvation and is the form of discrimination or pure knowledge (Vidya). In contrast, Preya is the path of worldly joy and is the form of ignorance (Avidya). The text states that he whose mind runs toward Preya falls away from his true self-interest. While the wise are never deluded by Preya, the ignorant do not like the path of Shreya, highlighting the fundamental conflict between these two ways of life.