What are the core differences between the paths of Shreya and Preya as outlined in Chapter 17 of the Sai Satcharitra?

Chapter 17 of the Sai Satcharitra explains that Shreya and Preya are two distinct paths with opposite natures, much like light and darkness. Shreya is described as the path of the Good or Salvation, representing pure Knowledge (Vidya) and wisdom. Conversely, Preya is the path of the Pleasant or Worldly Joy, which is characterized by pure Ignorance (Avidya) and a lack of discrimination. The text emphasizes that those who are drawn to Preya, which is fueled by a craving for worldly objects, fall away from their true self-interest. In contrast, the wise, intelligent, and fortunate individuals are said to cling only to Shreya, turning away from the distractions of Preya.