A young prince once asked an old cripple how he could sleep so soundly each night. The cripple responded that he had been born with his deformities and had learned to live with this fact. Curious, the prince offered to have his best doctors and servants treat him. The old man chuckled and politely declined, replying that he was content with his lot in life. That night, the boy dreamed that he had turned into the cripple who begged for his livelihood. Waking up from the nightmare, he swore to never let such a fate come to pass.
Decades later in old age, the prince who ascended the throne and became king wandered the halls alone at night. Now an insomniac, he cursed the cripple for having steered him onto his current path. On his deathbed, the man finally broke down and begged for a reprieve. His wish was granted.