In sadness and pain, this poem contains burning desire and persistence, and its emotional realm is profound and rich. The poem describes women's love for men and men's nostalgia for women, and compares Penglai Mountain with the barrier of love, showing the author's helplessness and regret that he can't meet each other.
In a word, Li Shangyin's Untitled Time was a long time before I met her, but in Longer after We parted, he wrote the love psychology in a feminine style, expressing his deep feelings and thoughts on love.