Tradition
Xinmin Yang lived with his family in a rural part of China. They were accustomed to a rustic lifestyle, and Yang spent a lot of time foraging food for them from the nearby forest. His family had lived there for generations, so he knew the place well.
He knew all the best places to pick berries, herbs, mushrooms, fruits, and other things that could be turned into delicious meals. The woods could, however, sometimes be a dangerous place too.