The whole poem is as follows:
Inlaid harp
(Tang) Li Shangyin
I want to know why my Jinse has fifty strings, and each string has a youthful interval.
Zhuangzi daydreaming, a saint, was bewitched by butterflies, and cuckoo crowed in the imperial spring.
Mermaids shed pearl-like tears on the moon-green sea, and the blue fields breathed their jade to the sun.
A moment that should last forever has come and gone before I know it.