First of all, the concept of Ci has different characteristics.
Su Shi thinks that words are superfluous, and he "works with the rest of the article, writing songs and lyrics", so Su Shi's words can't express his emotional experience all his life, because he also expresses many emotions with the help of prose and poetry.
Xin Qiji, on the other hand, devoted himself to the creation of ci poems, writing more than 600 ci poems in his life, which was the most among the poets in Tang and Song Dynasties. His ci basically covers his life's emotional experience, shows his personal feelings and objectively reflects history.
Second, the degree of development of Ci is different.
Ci only broke the barrier of "Ke Yan" when Su Shi was in power. His ci has a wide range of contents, including love and parting, political ideals, exile life, feelings of brothers and friends, seasonal scenery, details of life and so on. , can be described as "unintentional, nothing to say", greatly expanding the realm of words.
Xin Qiji improved the social function of Ci and widely reflected social life. Xin Qiji mainly described the struggle against gold and integrated the social problems at that time into his ci. Although Su Shi creatively wrote famous works about frontier defense and patriotism, due to the factors of the times, he did not describe and portray such poems like Xin Qiji, reflecting the pulse of the times.
Third, the use of language shows different characteristics.
Su Shi took poetry as his ci, and made great innovations in the language of his ci. He changed the style of Hua Jian Ci writers' misuse of gold. He absorbed more poems of Tao Yuanming, Li Bai, Du Fu and Han Yu in his ci, and introduced the content, theme, expression and language style of the poems into his ci, which liberated the style of ci. The language is fresh and simple, giving people a feeling of indifference and simplicity.
Compared with Su Shi, Xin Qiji not only used the syntax of ancient modern poetry, but also "took prose as a word" and absorbed a lot of prose, parallel prose and folk oral words. Whether it is classics, history, zi, Ji, Chu ci, or poetry and Chinese, he rubs them into the words by hand, and also comprehensively uses the method of Fu Bixing.
Fourth, the expansion of the inner world shows different characteristics.
Su Shi often experiences life with a broad-minded and detached outlook on life, showing philosophical sentiment, pursuing detachment from pain and seeking ideal light in the darkness of reality. Although there is passion and injustice about life in his poems, this kind of passion and injustice is often suppressed by the poet with calm and rational optimism, showing detachment and tranquility.
However, Xin Qiji's ci often shows a deeper and broader sense of social hardship, the anguish of individual life, the cry of grief and indignation and the fiery enthusiasm. Compared with Su Shi, he showed more heroic pride and heroic indignation.