This poem is a renowned allegorical work by the Mid-Tang poet Zhu Qingyu. Zhu Qingyu's poetry is known for its elegance and grace, and he excels particularly in depicting female psychology with delicate brushstrokes. However, his allegorical poems also form a distinctive style of their own, revealing a sharp edge within their plain surface. This poem was composed as Zhu Qingyu ascended the Mystic Tower in Chang'an. Located in the capital, the Mystic Tower was a famous scenic spot for climbing in the Tang dynasty, also a place for feasting and excursions for the powerful and aristocratic. During the Mid to Late Tang, social customs grew increasingly extravagant. Nobles and the powerful relied on their status to indulge in extreme pleasures, while the common people suffered hardship, and court governance gradually declined.