Examine the tweet "So blend the waters lie\nThere shrines and free-  The melancholy waters lie\nNo rays from out the dull tide-  As if the vine" and determine which of these emotions are present: anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust. If there are no identifiable emotions, reply with "neutral or no emotion".
optimism