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: Happiness is always there. You just have to choose to see it. There's no point dwelling in the dark and ignoring the light of the stars.
This tweet contains emotions: 
anticipation, joy, optimism