What are the allusions in the poem?

Li Shangyin used four allusions in Jinse. What are they? Zhuang Zhou butterfly dream? 、? Cuckoo cries blood? 、? Good jade produces smoke? 、? Tears in the sea? . 1、? Zhuang Zhou butterfly dream? This classic dreamlike dream is a metaphor for the beautiful situation I was addicted to when I was young. 2、? Cuckoo cries blood? Express my earnest thoughts with the grievances of animals. 3、? Good jade produces smoke? This constitutes a hazy fairyland, expressing a complex sense of melancholy, which includes both appreciation of its lofty and generous nature and a touch of sadness. 4、? Tears in the sea? Take this ideal scenery with high aesthetic significance to express a hatred that aristocratic feelings can't be close to.