The first sentence "cold" laid the tone of the poem, and the cold room set off the poet's inability to sleep alone. The appearance of mountains and moons broke the silence of the night, and the word "Ru" skillfully used personification rhetoric, turning static into dynamic, adding a smart color to the whole poem.
Yuan Haowen, nicknamed Yu Zhi, was born in Xiurong, Taiyuan (now Xinzhou, Shanxi), a famous writer, historian and literary leader in Yuan Dynasty. He is the main representative of northern literature during the confrontation between Song and Jin Dynasties.