It expresses the poet's thoughts and feelings of missing his hometown and his relatives in his hometown.
Interpretation:
1. Alone in a foreign land: It alludes to the lonely environment. For teenagers who have left home for the first time, they are particularly sensitive to this environment.
2. "Stranger" emphasizes the strange and cold feeling of a wanderer in a foreign land without any friends.
3. The use of the word "du" and two "different" words in a poem greatly deepens the degree of subjective feeling.
4. The second sentence "I miss my relatives even more during the holidays" is a reasonable development of the previous emotion, which shows that we already miss our relatives in ordinary times, but during festivals, this longing becomes even deeper and stronger.
5. The word "double" is used extremely well. It is the key to connecting the emotions of the two sentences above. These two sentences constitute a level of the whole poem and express the thoughts from the subjective feelings of the lyrical protagonist. Of affection.