Desensitized

I had never really dealt with death before, I mean the closest person who ever died to me was a nice girl who went to my middle school, I didn't know her to well. But all I knew was that I was suppose to feel sad about it. Someone told me recently "Death is something you have to accept regardless of the circumstances. But in general when people die and there is no emotional attachment then there is just a small amount of sympathy involved. But if there is a closer connection people pity themselves and mourn for themselves not really the person dying." Recently this has made a lot of sense, because in the past month I have seen about 5 people die, but no one around me has seemd to feel upset about it.