Analyze the tweet "#RIP30 Heaven is rejoicing because they've gained an angel, the Keifer family are in my prayers 💙🙏" and indicate which emotions from the list (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) are expressed. If no emotions are found, answer with "neutral or no emotion".
joy, love, optimism, sadness