Once upon a time, there was a little girl named Mary. She was very curious and always asked a lot of questions.
One day, Mary's mother took her to the park. Mary saw a lot of birds and asked her mother, "Mom, why do the birds fly in the sky?"
Her mother smiled and said, "The birds fly in the sky because they want to be free and explore the world."
Mary thought for a moment and said, "I want to be free too!"
Her mother smiled and said, "You can be free too, Mary. You can explore the world with your mind and your heart."
Mary smiled and said, "I will!"
