Poetry, since ancient times, poetry and music are inseparable. After musical instruments appeared in ancient times, they naturally cooperated with folk songs (there were few forms of entertainment at that time). Later, ancient folk songs gradually developed their own formats and poems, so the earliest ancient poems can be sung with musical instruments. Song Ci itself is a well-written song full of words. Guzheng should be regarded as a representative of ancient musical instruments, so basically every song and dance performance on TV is accompanied by guzheng.

The above is just my personal opinion, to give you some ideas. I didn't refer to any information, and I didn't study it in depth. There may be mistakes. Find more information yourself.