Flowers come and go in the middle of the night, like spring dreams, and when they are gone, they seem to be nowhere to be found.

1, explanation:

It expresses the feeling that life is like a dream, like fog and electricity, and shows a yearning and regret for the beautiful people and things that once existed and disappeared in life.

2. Original text and source:

Flowers Are Not Flowers Don Bai Juyi

Flowers are not flowers, fog is not fog,

It came in the middle of the night and left at dawn.

When did a short and beautiful spring dream come?

When they leave, they are like clouds in the morning.

3. Vernacular translation:

Like flowers, like fog.

Arrive at midnight and leave after dawn.

Come like a spring dream, how much time can you have?

When I went there, it seemed that the clouds were gone and there was no place to look.

The allusions quoted in the extended material Flowers Are Not Flowers;

Go to a place where there is no cloud to find, and borrow the story of King Xiang of Chu dreaming of the goddess of Wushan. The goddess is a beautiful fairy who watches clouds and rain at dusk. Since then, "Wushan Goddess" has often been used as a metaphor for beautiful women, from which a series of literary works, such as poems, fu, ci and songs, have been derived, forming a rhyming literary corridor to describe and praise the Goddess, which has a far-reaching influence in the history of China literature.

This poem quotes this allusion to express a kind of nostalgia and regret for the beautiful people and things that once existed and disappeared in life. Punning and hazy beauty are the biggest characteristics of this little poem. Fog, dream of spring, clouds, these images are hazy and ethereal, deliberately omitting the connection between them, showing a huge leap, and the words are ethereal and refined, which is memorable and shows the poet's extraordinary artistic skill.

References:

Baidu encyclopedia-flowers are not flowers