Once upon a time, there was a mop named Mimi. Mimi was very anxious because she wanted to be useful. She lived in a small house with a kind lady named Sue. Sue knew that Mimi was anxious, so she talked to her.
"Hi Mimi, don't be sad. I need your help to clean the floor," said Sue. Mimi was so happy that she could help. She cleaned the floor very well and made Sue happy too.
That night, Mimi had a dream. In her dream, she was a superhero mop. She flew around the world, cleaning up dirt and messes everywhere. Mimi was not anxious anymore. She knew that she was important and helpful. 
The next day, Mimi told Sue about her dream. Sue laughed and said, "You are my superhero mop, Mimi. Thank you for keeping our home clean."
From that day on, Mimi was never anxious again. She knew that she was a superhero mop in Sue's heart, and she was happy to help clean the house every day.
