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: Carry on my wayward son, there'll be peace when you are done. Lay your weary head to rest. Don't you cry no more. #Supernatural
This tweet contains emotions: 
optimism