A kid asks his grandfather: "Grandpa, which is the secret of life?". The old's man face smiles while he answers: "within us all is as if he we have two wolves fighting. One of them is ambitious, always protecting it's territory, with anger and resentment; it is fearful and controlling. The other is focused on the love, joy and peace, it is adventurous and playful"
The kid full of curiosity asks: "But, which one will win the fight?"
And the old man answers: "The one you feed"