Finishing the affairs of the king and the world, winning fame both before and after his death, pity the feelings expressed in vain

"Settling the king's affairs in the world and winning fame both before and after his life." "The affairs of the world" refer to the great cause of recovering lost territory and unifying the motherland. "Fame during life and after death" means that he will leave behind a good name for establishing an immortal country of merit for the motherland and nation before and after his life. The words are filled with patriotic passion. These two sentences mean that the poet is very satisfied when he sees the work is done, and he cheers happily. Even the tone is relaxed and majestic, which brings the emotion of the poem to the highest point.

The concluding sentence "Pity happened in vain", the sharp turn of the pen, made the feelings plummet from the highest point, and expressed the infinite emotion that the ambition is unfulfilled, revealing the sharp opposition between ideals and reality, and expressing the spirit of serving the country. The sorrow and anger of the heart, which has no way out, gives the whole poem a rich color of sadness. This sentence echoes the first sentence, both describe the feelings of real life, and form a strong contrast with the dream in the middle, effectively expressing the grief and indignation of serving the country without fulfilling its ambitions.