You can almost place yourself at the scene, hearing the honks of the geese carry across the land enveloped by the dark cage of night, their silhouettes traversing the sky, pricking unlimited feelings of regret.
換成大白話，大概就是：深夜裡，雁鵝響亮的叫聲，隨著掠空而過的身影，傳遍黑暗籠罩的大地，勾起人們無限悵惘。