Task: Identify the primary emotion conveyed in the tweet and assign it to either 'neutral or no emotion' or one or more of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best capture the tweeter's mental state.
Tweet: You dont have to feel grateful to be grateful, for it is written  ' all things work together for good'  for those who love God. #cheerful
This tweet contains emotions: 
joy, love, optimism, trust