What does it mean to fish Jiang Xue alone for fortune telling _ to fish Jiang Xue alone?

Which poem is "The Old Man Fishing in the Cold River-Snow"?

An old man was fishing in the cold river-the snow came from Liu Zongyuan's Jiang Xue.

The whole poem is:

There are no birds flying over those mountains, and there are no traces of people in those paths. A boat on the river, a fisherman wearing his webworm moth; Fishing alone is not afraid of snow and ice.

Translation:

There is no bird trace in Qianshan Wanling; There are no footprints of pedestrians on thousands of roads. On a lonely boat, a fisherman wearing hemp fiber and hat; Fishing alone in the snow.

Appreciate:

The poet used only twenty words to describe a quiet and cold picture: on the snowy river, a boat and an old fisherman were fishing alone on the cold river.

What the poet shows his readers is this: the world is so pure and silent, spotless and silent; The fisherman's life is noble, and the fisherman's character is detached. In fact, this is a fantasy realm created by the poet because he hated the declining society of the Tang Dynasty at that time. Compared with the characters in Tao Yuanming's Peach Blossom Garden, he is more ethereal and far away from the world.

About the author:

Liu Zongyuan (773-819) was born in Hedong (now Yuncheng, Shanxi) and was known as "Liu Hedong" in the world. In the ninth year of Zhenyuan (793), he was a scholar, and was awarded the orthography of Jixian Hall, transferred to Lantian Wei, and worshipped the imperial history. After the failure of "Yongzhen Innovation" due to his participation in Wang Group, he was demoted to Yongzhou Sima. Ten years later, he moved to Liuzhou for secretariat, so he was also called "Liu Liuzhou". Died of illness. Liu Zongyuan and Han Yu jointly advocated the ancient prose movement and called it "Liu Han". His poems and Wei's are called "Liu Wei". There is Liuhe East Collection.