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: Theme of week: Ask the Lord for strength &amp; perspective to persevere in #integrity and effort, despite being #disheartened &amp; disappointed.
This tweet contains emotions: 
joy, optimism, sadness