Once upon a time, there was a bird who could fly very high. The bird was nervous because it had never flown so high before. One day, the bird met a doctor who was also a friend.
The doctor said, "Little bird, you can fly very high, but be careful not to go too high." The bird was still nervous, but it listened to the doctor's words.
One day, the bird decided to fly very high, even though the doctor told it not to. It went higher and higher into the sky. The bird was so high that it could not see the ground anymore. It was scared and wanted to go back down, but it could not find its way.
Then, the bird got very tired and could not fly anymore. It fell from the sky and did not get up again. The doctor was sad when he found the bird on the ground, but he knew that he had warned the bird about flying too high.
