It is like a mayfly in the vast world, as small as a grain of rice in the sea. "Mayflies are sent to heaven and earth, a drop in the ocean" comes from Su Shi's "Red Cliff Ode". It uses mayflies and rice in the sea to illustrate the shortness of life and the insignificance of human beings, and expresses the author's negative outlook on life and nihilism after being demoted. Thought. "Red Cliff Ode" was written when Su Shi was demoted to Huangzhou, which was one of the most difficult periods in his life. It describes what the author and his friends saw and felt while boating on a moonlit night in Red Cliff. It reflects the author's transition from the comfort of moonlit boating to nostalgia for the past. From negative thoughts that hurt the present, to feelings of spiritual relief, from expressing the depression and confusion after political frustration, to finally an open-minded and cheerful attitude towards life, it reminds people to maintain an optimistic and detached attitude in difficult situations. Su Shi, also known as Dongpo layman, was a famous writer and calligrapher in the Northern Song Dynasty. He was one of the "Eight Great Masters of Tang and Song Dynasties". His works include "Dongpo Seven Collections", "Dongpo Yi Zhuan", "Dongpo Yuefu", etc.