Briefly describe the creative background of Jinse.

Li Shangyin is talented and quick-thinking. He was admitted to a scholar in his early twenties. He was jealous of the Hong Kong University of Science and Technology and was not brushed off. Since then, he has never met his talent. In the "Niu Li Party Struggle", the two sides are in a dilemma, full of doubts, repeatedly rejected, and their ambitions are difficult to achieve. Losing his wife in middle age, expressing his feelings by writing poems, is despised by people. This poem was written by the author in his later years, and there have always been different opinions about the creative intention of this poem "Jinse". Or think it's patriotic, or think it's a memorial to his dead wife, or think it's a theory of self-injury, or think it's a pen to express your thoughts and treat your children. The Historical Records of Feng Chan contains 50 strings of Guser, while the latter is generally 25 strings. However, this poem was written after the death of Li Shangyin's wife, so 50 strings have the meaning of broken strings (once the 25-string Gusser string is broken in half, it is 50 strings), but even so, every string and syllable of it is enough to express the yearning for that wonderful time.