What does Jiang Xue Center mean?

Liu Zongyuan's "Jiang Xue" has double artistic conception: first, the cold and lonely artistic conception described in the poem itself contrasts with the old man's fishing on the river, showing a lonely fishing picture full of interest and vitality in cold weather; The second is the artistic conception in the author's mind, that is, the inner feelings that the author wants to express when writing this poem. It is a grand and lonely but extremely lofty inner emotion. It is an extraordinary realm of life, which transcends the material, the image in the poem and even the life itself. This kind of emotion can only be realized by our quiet heart.