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

The fundamental difference between Shreya and Preya is that they are opposite in nature, like light and darkness. As detailed in Chapter 17, Shreya is described as the path of salvation and the form of discrimination or wisdom (Vidya). In contrast, Preya is the path of worldly joy and the form of ignorance or lack of discrimination (Avidya). The text emphasizes that those whose minds run toward Preya ultimately fall away from their true self-interest, whereas Shreya represents the pursuit of pure Knowledge, which is disliked by the ignorant.