What are the romantic images in China's ancient or modern poems?

Li Bai's "Memory" "Xiao Shengyan, the dream is broken. Qin Louyue, Liuse every year, Fuling is injured. " The custom of breaking willows to bid farewell flourished in the Tang Dynasty. In the Tang Dynasty, Baling Bridge in Xi 'an was the only place for people to leave Chang 'an when they went to all parts of the country, surrounded by willows on both sides of Baling Bridge, which became a famous place for the ancients to fold willows to bid farewell. Later generations took "Baqiao Folding Willow" as the source of farewell allusions. Therefore, there are poems in the text, "Qingyang is more separated from strangers." In "Lin Yuling", Liu Yong expresses the sadness of parting with "Where to wake up after drinking tonight, Yang Liuan, where the wind is resting". Since the story of breaking willow at Baqiao Bridge, willow and parting seem to have some inevitable connection.