The translation of this sentence is:
I met you on the horse, but unfortunately I didn’t have a pen and paper with me, so I had to ask you to tell my family that I was safe and sound.
These two sentences describe the situation when meeting a messenger coming to Beijing and wanting to send a letter home to report that he was safe but having no paper and pen. They are completely written in the hurried tone of the traveler who is about to meet, and they are very expressive. The word "meet" points out the title. On the way to Anxi, I met an old friend who was an envoy to Beijing. They both walked by each other with their horses in full swing. One continued to go west, and the other returned east to Chang'an, while his wife was also in Chang'an. , I happened to ask my old friend to bring a safe letter home, but I didn’t have paper and pen, and I didn’t bother to write a letter, so I had to ask my old friend to bring a message, “I’ll send you a message to say safe and sound.” This last line of the poem is very simple and neatly wrapped up, but the simplicity embodies the poet's deep feelings, which makes it taste light and has quite a charm.
Cen Shen went on this trip with the ambition of "taking fame only from the horse". At this time, his mood was complicated. On the one hand, he has the tenderness of longing for the imperial capital and his hometown, and on the other hand, he also expresses the poet's broad and heroic mind.
This is "Meeting the Envoy Entering the Capital" written by Cen Shen. The whole poem is:
Looking eastward from my hometown, the road is long,
My sleeves are full of tears.
We will meet soon without pen and paper.
I will rely on you to send a message of peace.