Sui Dynasty, Xue Daoheng
Two poems from the fortress
The mournful flute music on a cold night, the frosty sky cuts off the sound of wild geese.
The two sentences shown by the poster are based on the ancient poem by Xue Daoheng above. It should have been written by someone today.
Probably it means ==The night is cold and the autumn frost is everywhere. It will be difficult to hear the cries of wild geese again. It took a long time to write a poem. Just when I was about to finish it, I heard the rooster crow.