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: 15 minutes of yoga to your breakfast routine will change your day #preparation #sunriseyoga #bodyawareness #health #yoga #smile #stretch
This tweet contains emotions: 
joy, optimism