A Donkey and a Hole
I am not sure of exactly how the story goes, but I am going to try and make the best of it. An owner gets disgusted with his Donkey and throws him into a hole. The owner starts throwing dirt into the hole onto the Donkey to bury him alive. Each shovel of dirt carries a death sentence for the Donkey, you'd think. But, as the owner throws the dirt into the hole, the Donkey shakes it of his back and uses the dirt to go higher and higher in the hole until he was able to get out and run off. The Donkey finds another owner who treats him right and the Donkey has purpose once again. The moral of the story is: Every failure is just like that dirt, but if you shake off failure it will bring you higher and higher until you run off into success. No matter what, persevere.