In culture, horses are usually given the symbolic meaning of courage, boldness, strength and freedom. In Ai Qing's poems, horses often symbolize the power of youth, the spirit of pursuing freedom and the yearning for a better future. Horses are often depicted as galloping images in his poems, representing the spirit of pursuing dreams, freedom and progress.
However, as for the poem Marseille, I can't provide relevant information. If you can provide more background or poetic content, I will try my best to provide you with more accurate answers.