There is a story from China about an old farmer, who had an old horse for doing his farm.
Once upon a day the horse run, dissapear in the mountains, and when all of farmer's neighbours say about their sorry to the old man which unfortune, the farmer say, "Bad luck? Lucky? Who knows?"

A week later the horse come back with bring few wild horses from mountains and this time his neighbours congratulate the farmer because his fortune. His answer is, "Bad luck? Lucky? Who knows?"

And then, when son's of the farmer try to tamed one of that wild horse, he fell from horse's back and his leg is broken. Every people feel that this time must be unlucky. But not with the farmer. He only say, "Bad luck? Lucky? Who knows?"

Few week later army come to the village and make list all healthy young man they find there. When they see the son's of old farmer who got broken legs, they set him free.
Is that lucky ? bad lucky? Who knows?" 

                                                                                                Anthony de Mello, SJ