Shici Xiaozhu will give you the answer:
1. It expresses the emotions of feeling concerned about the current situation and the country, and missing home and relatives.
2. The first floor is "looking at the country". Feeling the division of the country and the difficulties of the country, the author sees that the country is in turmoil, the war continues for years, the people are separated from each other, and the news is blocked. This caused a deep concern for the country; the other layer is "looking forward to home". The author experienced adversity and was homesick for his family. He was full of emotions and cherished the homesickness of loving the motherland and caring for his family.