How does Chapter 17 compare the choices made by a wise person versus a dull-witted person regarding Shreya and Preya?

Chapter 17 draws a sharp contrast between the choices of the wise and the dull-witted. It states that a wise, courageous, and intelligent person acts like a swan that separates pure milk from water, meaning they discern and cling only to Shreya, the path of salvation, and turn away from Preya. Conversely, a dull-witted person, lacking discrimination, becomes entangled in worldly concerns like maintaining their body, family, and wealth. As Chapter 17 explains, even when both paths are presented, this type of person is easily conquered by Preya and embraces it, thus falling away from their true self-interest.