According to Chapter 17, why do some people choose the path of Preya, and what analogy is used to illustrate the choice of a wise person?

Chapter 17 explains that individuals who are dull-witted and lack discrimination choose the path of Preya because their senses crave worldly objects and they are caught in the cycle of maintaining their body, wealth, children, and status. The text highlights that as long as there is an obsession with gold and women, Preya will seem sweet. To illustrate the choice of a wise person, Chapter 17 uses the beautiful analogy of a swan (Maral), which, when presented with a mixture of milk and water, is able to drink only the pure milk. Similarly, courageous and wise souls cling only to Shreya (the milk) and turn away from Preya (the water).