Task: Identify the primary emotion conveyed in the tweet and assign it to either 'neutral or no emotion' or one or more of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best capture the tweeter's mental state.
Tweet: Tonight my top delight was a Skein of Geese flying about 1 foot above me as I swam in #Windermere. Breeze dropped &amp; it became like glass.
This tweet contains emotions: 
joy, optimism, trust