Once upon a time, in a beautiful kingdom in Denmark, there lived a nightingale. The nightingale's song was like celestial music. Every night, it would stand on the branch in the palace garden and sing. Its song was so clear and melodious that it seemed to pierce through people's hearts. Everyone who heard its song would be deeply touched. Whether it was the servants who had been busy all day or the noble king, they would be intoxicated in the nightingale's song and feel extremely relaxed and happy.
One day, an emissary from a far - away country came to this kingdom. He brought a very special gift - a mechanical nightingale. This mechanical nightingale was inlaid all over with jewels and gold and looked extremely magnificent. When people wound it up, it would sing. Although its song was also very beautiful, it lacked the sincere emotion that could touch people's hearts. The king was bewitched by the appearance of this mechanical nightingale and gradually neglected the real nightingale. The real nightingale was very sad, so it decided to fly away and leave this place where people once loved its song.
However, before long, the king found that although the mechanical nightingale had a magnificent appearance and its song was not bad, it always sang according to a fixed program without any change or emotion. Moreover, the mechanical nightingale suddenly broke down and could no longer sing. The king missed the real nightingale's song very much, and his health became worse and worse because of longing and loss.
At this time, the real nightingale heard the news that the king was ill. It couldn't bear to see the king in such pain, so it flew back to the palace. When it stood in front of the king's window and began to sing, the song full of sincere emotion seemed to have a magic power. The king gradually recovered, and his face showed a smile again.
Since then, the king has understood that the really precious thing is not the magnificent appearance but the sincere emotion from the heart. He was no longer bewitched by those flashy things, and the real nightingale, as before, sang for everyone in the palace garden every night, and people also cherished this wonderful song from nature more.
