Task: Determine the prevailing emotional tone of the tweet, categorizing 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 most accurately represent the tweeter's mental state.
Tweet: When I walk in darkness of despondency, Sc.verses I've memorized shine a light in my heart. Ex: Lam 3:22-25
This tweet contains emotions: 
joy, optimism