calling all doctors/nurses.

My husbands grandpa is dying and I feel so bad because I am looking at this as a medical stand point and I feel so bad that my medical stand point is over ridding my emotional stand point. I am a geriatric nurse so I am around death often and I have grown to accept it as part of life. It still deeply saddens me but because I've been around it for so long my coping is different. My in laws keep telling him to fight but they hate to see him suffering. They are basically holding on to the thought that he will pull through. I learned in my studying that when people are in their final stages sometimes they need to be told that it's ok and that we love them and always will but it's ok to go. There is someone who loves them waiting for them on the other side. I want to tell my mother in law this because I see her suffering seeing her dad suffering but I really don't want to see like I'm insensitive. What should I do....