Plum blossoms are proud of snow, which means that plum blossoms are still in full bloom in a cold environment and can resist frost and snow. The more it blooms, the more brilliant it is, and the harder the external conditions are, the more energetic it is. People often use plum blossoms as a metaphor for people with noble moral integrity.

Aoxueling ointment is a metaphor for not showing weakness and being fearless in the face of cruel persecution or blow after a long period of tempering. Pronounced as á oxu á lí ng Shu ā ng, it comes from Song Yang's "Liu Zhuqing": "Ao Xueling ointment, which can help to bully the cold and borrow spring."