Xu Shu, a volunteer in the palliative care unit of Beijing Haidian Hospital after retirement, took care of her 94-year-old father, who suffered from aspiration pneumonia, in a palliative care method, until he died in a relaxed state. Palliative care is to provide physical, psychological, and spiritual care for patients and their families at the end of life, minimizing the pain of patients and their families. Its principles are, for example: relief of pain and other painful symptoms, instead of focusing on the treatment of diseases; Neither accelerates nor delays death, accepting death as a natural process ...