Task: Evaluate the tweet for emotional cues and classify it as either 'neutral or no emotion' or as one or more of the specified emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that indicate the tweeter's state of mind.
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