Du Fu's poems are characterized by melancholy and depression. Please explain its meaning in detail. Thank you, hurry! ! !

Depression is emotional sadness, which means that his works are profound in ideological content, serious in theme and profound in feelings.

Drug withdrawal is the ups and downs of emotional expression and repeated low returns. It refers to the calm and implicit expression, the twists and turns of the text, the multi-end, the grand transformation and the change of rhythm.

Du Fu is a poet who cares about national security and people's sufferings. In turbulent times, personal setbacks are full of sadness at the touch. There is a deep anxiety in his poems, whether it is sketching people's sufferings, homesickness for friends, or writing about his own poverty, his feelings are profound and broad. His poems contain an accumulated emotional force. Every time he wants to spit it out, his kindness and his Confucian self-restraint form a neutral attitude towards life, which suppresses the grief that is about to spit it out and makes it slow, deep and low. Personal grief has become a deep concern for people's suffering, leaving endless charm.