Rage is used to show us the infinite value of peace. Boredom is used to underline the importance of adventure & spontaneity. Silence is used to teach us to use words responsibly. Tiredness is used so that we can understand the value of waking up. Illness is used to underline the blessing of good health. Fire is used to teach us about water. Earth is used so that we can understand the value of air. Death is used to show us the importance of life.
― Paulo Coelho, Warrior of the Light