Come and go, unconsciously, who wrote this poem? Seeking the whole poem ~

From Li Shangyin's Jinse: The moment that should last forever has come and gone unconsciously. "

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.