Task: Classify the mental state of the tweeter based on the tweet, determining if it is 'neutral or no emotion' or characterized by any of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: Remember, for everything you have #lost, you have gained something else. Without the #dark, you would never see the #stars.
This tweet contains emotions: 
joy, optimism