Ego and Self

The ego and the Self dwell as intimate friends in the same body, like two golden birds perched in the same tree. The ego eats the sweet and sour fruits of the tree, while the Self looks on detached. For as long as you identify with the ego, you will feel joy and sorrow. But if you know you are the Self, the Lord of Life, you will be free from suffering; the supreme source of light; the supreme source of love. You will transcend duality and live in a state of Oneness.

-Mundaka Upanishad