Please analyze the tweet "#RIP30 Heaven is rejoicing because they've gained an angel, the Keifer family are in my prayers 💙🙏" and classify its emotional content. Choose from the following emotions: anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust. If no emotions are detected, respond with "neutral or no emotion".
joy, love, optimism, sadness