Task: Analyze the tweet's emotional connotations and classify it as either 'neutral or no emotion' or as one or more of the specified emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best portray the tweeter's mental state.
Tweet: Only God knows why things happen, sometimes it's just hard to understand. #sad #prayingforyou
This tweet contains emotions: 
optimism, sadness