Literature Reference: 病身不许依年老，拙宦虚教逐日忙。—— 《十二月二十三日作兼呈晦叔》 白居易 Ailing body cannot rely on aging, clumsy officialdom vainly teaches daily busyness. - 'Written on the 23rd of December and Presented to Hui Shu' by Bai Juyi.
身: In person, oneself, one's physical form.
羸: Thin and frail, small and delicate. Carries an unfavorable connotation, use with caution.
Meaning: The term implies a frail body, reflecting on health and the impermanence of life.