Task: Categorize the tweet's emotional tone as either 'neutral or no emotion' or identify the presence of one or more of the given emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: #RIP30 Heaven is rejoicing because they've gained an angel, the Keifer family are in my prayers 💙🙏
This tweet contains emotions: 
joy, love, optimism, sadness