Your father died; You left home young, your knowledge is hard to get rid of, but your tears can't be hidden. What will be the future of dust? How to explain this poem?

I shed tears in the direction where you are going, and I don't know when I will meet you again. Send Li Duan to my old door. In the yellow grass, we are still wandering and have bad feelings. The way you walked into the sky, when I saw the snow falling at dusk, I came back. When I was young, my father and I traveled abroad, and I had no time to meet you in many difficulties and hardships. Hide your face and cry, where does the dust go? Remarks: 1. Loneliness: refers to the early death of his father. My hometown is full of rotten hay. How sad our separation is! The road you set foot on, far away from Leng Yun, sent you back, in the dusk snow. Teenagers lose their loved ones prematurely and wander in a foreign land, but it is too late to meet each other. I shed tears in the direction where you are going, and I don't know when I will meet you again. Comment:? This is a touching farewell poem. The first pair of couplets is about the environment and atmosphere of farewell. When it comes to leaving the world, parting is sad. Zhuan Xu wrote a farewell scene, where friends went with Leng Yun and came back through the dusk snow, with distinct feelings. Neck couplet writes about the past and laments life experiences. It is not only pity for friends, but also pity for yourself. Between the lines are sincerity and sadness. At the end of the couplet, I further wrote the feeling of being inseparable, hiding my face and crying, hoping to meet.