The wild puppy tells us that the higher ups have changed, and they're using all kinds of trickery to get their hands on people's property. The only thing that unites them is benefit, and if they destroy one another, it'll bring them even more benefits. He tells the wild puppy to watch out for himself, and to think of ways to increase his performance. He also tells the puppy that he can't call this teaching, because it's a reminder from Dongyuan. The implication in the words "chang" is that dongyuan is "that kind of person" , and that's why he's always changed. The next morning, he wakes up to a short breath.