Task: Analyze the tweet's sentiment and assign it to either 'neutral or no emotion' or one or more of the specified emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: Is it just me or is this a very weird time for the world? #change #enlightenment #gloomy #weird #sigh #imaginepeace #imaginelove #unite
This tweet contains emotions: 
optimism, sadness