Task: Analyze the tweet's emotional connotations 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 best portray the tweeter's mental state.
Tweet: After becoming boiling hot, after slowly melting, my heart is frozen.
This tweet contains emotions: 
anger, joy, optimism, sadness