What kind of feelings did the Pan-Hai Huai Tongzhou express?

Pan-Hai Huai Tongzhou expressed the author's great ambition of homesickness and serving the country. The poet took a boat to the sea and overlooked his hometown Tongzhou. He expressed his strong homesickness through the scenery and also expressed his firm belief and ambition to make contributions to the country. The whole poem describes the vast waves and boundless sea of clouds, which sets off the poet's inner feelings and makes the poem more appealing.