What's the matter with the poem "Meeting an emissary who defected to the capital", which expresses the poet's yearning for his loved ones in an exaggerated way?

Missing:

The road to the east of the old garden is long.

The tears of the double-sleeved dragon bell are dry.

When welcoming a messenger to the capital.

Don Cen Can

The road to the east of the old garden is long.

The tears of the double-sleeved dragon bell are dry.

I'll see you soon. Without paper and pen,

Use your information to report peace.