It is true that there is an inextricable relationship between thinking about death and depression. Because depressed people will have low self-esteem, self-blame, feeling inferior to others, dragging others down, and may even feel that life is meaningless and have thoughts of not wanting to live, so they will have suicidal thoughts. It is true that there is a relationship between thinking about death and depression, but it is not true that if you think about death, you must be depressed. Because many patients have physical discomfort, such as headache, fever, and physical discomfort, they will be very irritable and unbearable, and will have sudden thoughts and ideas of death. Of course this has little to do with depression. Psychiatry, for example, the patient keeps hearing people talk about going to die or living meaninglessly, are symptoms of hallucinations, which are also related to death, but do not belong to the category of depression.