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: 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