A blessing in disguise is a blessing in disguise. Where did it come from?

Although the metaphor of "a blessing in disguise is a blessing in disguise" has suffered a loss, it may be rewarded even more. It can also be used to describe a bad thing turning into a good thing.

This classic comes from "Huainanzi Human Training": "Those who are on the frontier have good skills, and the horse died in Hu for no reason. ..... So, a blessing is a curse, and a curse is a blessing. It is extremely unpredictable and unfathomable. "

In a dangerous place on the border, there lived a man who was good at predicting good or bad luck through divination. Once, his horse crossed the border and ran to the conference semifinals. People came to comfort him in such misfortune. The old man who is good at divination said, "Why can't this be a good thing?"

A few months later, his horse came back with a good horse of the Hu people, so people congratulated him. But the old man said, "Why can't this be a bad thing?" Because there is a good horse at home, the old man's son likes riding again. Riding, he fell off his horse and broke his thigh. People came to comfort him again. The old man said, "Why can't this be a good thing?"

A year later, the Hu people invaded the border, and all the young people took up arms to fight. Nine times out of ten, they all died in the battle. Because the old man's son was lame, he was not drafted into the army. In the end, both father and son saved their lives. It seems that good things become bad things and bad things become good things. The changes here are endless, and the truth here is unfathomable.