Which Wolf Are You Feeding?

Marci Shimoff and Carol Kline share the secrets of happiness in their book Happy for No Reason. To demonstrate the difference between negative and positive thinking, they offer this example:

"One evening a Cherokee elder told his grandson about the battle that goes on inside people's heads. He said, 'My son, the battle is between the two wolves that live inside us all. One is Unhappiness. It is fear, worry, anger, jealousy, sorrow, self-pity, resentment and inferiority. The other is Happiness. It is joy, love, hope, serenity, kindness, generosity, truth and compassion.'

The grandson thought about it for a minute and then asked his grandfather, 'Which wolf wins?'

The old Cherokee simply replied, 'The one you feed.'"

Which wolf are you feeding?