Classify the emotions found in the tweet "Awe produces gratitude, gratitude instills joy, &amp; the harvest of joy is contentment.' \n\n–@PaulTripp #awe 😭😭😭". Select from the following: anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust. If the tweet is emotionless, reply "neutral or no emotion".
joy, optimism