The club reads Bai Juyi's 120-line masterpiece, 'Song of Everlasting Regret'. Over ten expansive lessons, they establish the profound historical trauma of the mid-Tang era. They analyze the Emperor's fatal dereliction of duty, dissect the ruthless political mutiny at Mawei Slope, and examine the acoustic and geographic isolation of exile. Crucially, they dedicate a deep exploration to the philosophical concept of 'Regret' (Hen)—unpacking how it operates across political, romantic, and spatial distances to form an enduring cultural archetype. Finally, they follow the poem's stunning shift into Daoist mysticism, exploring how Bai Juyi bypassed the imperial archive to forge the defining myth of a fallen golden age.