If she just turns her head and smiles, there are a hundred spells, and the powder and paint in the sixth house become useless. What is the strategy?

Rhetorical devices of exaggeration and contrast. This poem comes from the Song of Eternal Sorrow written by Bai Juyi, a poet in the Tang Dynasty. Describe that Yang Guifei turned and smiled, charming and moving, and all the concubines in the palace were eclipsed in front of her.

"As long as she turns her head and smiles, there are hundreds of magic powers" emphasizes the charm of Yang Guifei's smile through the exaggerated word "charming"; However, the powder and lacquer in Liugong faded into nothing, so Yang Guifei's beauty was compared with other concubines in a comparative way, which highlighted her uniqueness.