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: Hearing your parent say they're proud of you elicits infinite waves of unconceivable glee.
This tweet contains emotions: 
joy, love, optimism