There's a Chinese parable I think about all the time. It's been around for over 2,000 years, originally from the Huainanzi. Alan Watts used to tell a version of it. It goes like this:
A farmer's horse runs away.
His neighbors come over that evening. "That's terrible luck," they say.
The farmer shrugs. "Maybe."
The next day, the horse comes back, and it brings seven wild horses with it.
"What incredible fortune!" the neighbors say.
"Maybe."
The farmer's son tries to ride one of the wild horses. He's thrown off and breaks his leg.
"How awful," the neighbors say.
"Maybe."
The following day, military officers come through the village, conscripting young men for war. They see the son's broken leg and pass him by.
"What great luck!" the neighbors say.
"Maybe."
And so it goes.