There is an old Cherokee story about a young man who keeps getting into trouble because of his aggressive tendencies.
The young man goes to his grandfather and says, "Sometimes I feel such anger, I can't stop myself.
Grandfather says, " I understand, I used to be the same way" "You see there are 2 wolves inside of you" "One is good and kind and peaceful, and the other is evil and mean and angry", "The mean wolf is always fighting the good wolf."
Young man asks, "But grandfather, which wolf will win"?
Grandfather replies. "The one you feed."