Task: Analyze the tweet's emotional connotations and classify it as either 'neutral or no emotion' or as one or more of the specified emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best portray the tweeter's mental state.
Tweet: You head north and arrive at a breezy cave. It smells sweet. You glance at your watch; you're running 15 minutes late.
This tweet contains emotions: 
joy