Task: Determine the prevailing emotional tone of the tweet, categorizing it as either 'neutral or no emotion' or as one or more of the given emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that most accurately represent the tweeter's mental state.
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