The "Southern Voyage of the Wind Bird" recounts the experiences of a cultivator named 'Yan Shu' who traveled south riding a Spirit Beast, the Wind Bird.
It is essentially a travelogue.
Among others, it includes encounters with the Demon Sect which turned peril into safety, a chance meeting with a beautiful woman, and a wonderful night spent together.
Wang Ba was completely engrossed in the story.
However, Yan Shu mentioned in the book that he once stayed in a place called 'Wu State', where he was welcomed by a local Beast Control Sect and had the good fortune to witness the Sect's massive process of breeding poultry and birds.
Since Yan Shu also raised Spirit Beasts, he took special note and secretly recorded the methods the other party used to breed poultry.
This is what is referred to as the 'Yuanyang Reversing'.
Wang Ba immediately took interest and straightened up to continue reading.
After all, Precious Chickens was also considered a Spirit poultry, it may come in handy.