Wanyan Aguda united the Jurchen tribes of Manchuria and declared himself emperor, founding the Jin Dynasty and launching a catastrophic military campaign against the neighboring Liao and Northern Song Dynasties. This sudden geopolitical upheaval shattered the cultural hegemony of the Northern Song, leading to decades of brutal warfare, mass migration, and social displacement. The rise of the Jin fundamentally altered the balance of power in East Asia, challenging the traditional Confucian world order with nomadic military dominance.

The traumatic fall of Northern Song territories deeply transformed Chinese poetry, steering it away from delicate aestheticism toward themes of exile, national grief, and spiritual disillusionment. Poets like Li Qingzhao and later Xin Qiji wrote heartbreaking verses detailing their flight south, using poetry as a spiritual lament for a lost world. The physical uprooting forced a generation of writers to seek solace in Chan Buddhism and Daoism, infusing their poetry with themes of impermanence.