Yuan poetry is a special type of poem that was written by people in China a long, long time ago. It was very popular during a time called the Yuan dynasty, which was from the 13th to the 14th century.
These poems were written in a special way called qu, which means that they had a certain pattern of syllables and rhyming words. The poems also usually told a story, kind of like a little fairy tale, and were sometimes sung like songs.
One really cool thing about yuan poetry is that it often mixed together different cultural and literary styles. This means that it would take ideas and styles from different parts of China and combine them into something new and creative.
So, yuan poetry is a special kind of ancient Chinese poem that is written in a set pattern and usually tells a story. It was very popular a long time ago, and was often a mix of different styles and ideas from different parts of China.