Task: Assess the emotional content of the tweet and classify 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 best represent the tweeter's mental state.
Tweet: Only God knows why things happen, sometimes it's just hard to understand.  #prayingforyou
This tweet contains emotions: 
optimism, sadness