There is also the story of a fisherman. One day he caught very few fish, which was bad luck. But on his way back, he found a precious pearl on the shore. This sudden discovery of the pearl was good luck. Chinese stories like these often teach people that good luck and bad luck can be relative and can change over time.
Once, I was running late for an important job interview. I missed my regular bus which was bad luck. But then, a kind stranger offered me a ride. That was good luck. I got to the interview on time and even managed to impress the interviewers. In the end, I got the job.
The 'good luck bad luck horse story' might be a story that uses a horse as a symbol to illustrate how things can change from good to bad or vice versa. For example, a poor farmer finds a wild horse, which is considered good luck as it can help with work. But then the son of the farmer tries to ride the horse and gets injured, which seems like bad luck. However, this injury might prevent the son from going to war later where he could have been killed, so it turns back to good luck again. It shows the cyclical nature of what we consider lucky or unlucky.
Well, in some traditional cultures and folk tales, there might be specific stories about good and bad luck. But who exactly knows all of them? Maybe historians or scholars specializing in cultural studies might have more insights.
One common theme is missed opportunities that turn into something better. For example, missing a flight which seems like bad luck but then getting a chance to meet someone important at the airport. Another theme is unexpected help during difficult times. Like when you lose your wallet and someone returns it with more money in it. It's bad luck to lose it but good luck to get it back with extra. And also, natural disasters or accidents that lead to new beginnings. For instance, a house getting destroyed in a storm but then the insurance payout allows you to build a better house.
In Chinese stories, there are many examples of good luck following bad luck. Take the story of a merchant. He lost all his goods in a shipwreck, which was terrible bad luck. But while floating on a piece of wood in the sea, he drifted to an uninhabited island where he found a lot of precious stones and gold. So, his bad luck turned into great good luck. It reflects the idea that one should not be too despairing during bad times as things can turn around.
It's hard to say for sure. Different Chinese stories present good and bad luck in various ways, and it depends on the context and the moral or lesson they aim to convey.
If we assume the story is about the horse's actions bringing different kinds of luck as I described before, the moral could be that life is full of unexpected turns and what may seem like a misfortune at first can lead to a greater good in the long run, and vice versa. We should not be too quick to judge an event as purely good or bad luck.