I was with my mom when she passed. She had reverted to thinking she was still with her mom, dad and brothers. I stroked her forehead as she struggled and told her that it was OK, she was going to to be with her family and her husband. She got this expression on her face so I knew she heard and understood me, and she passed shortly thereafter.
Letting the dying know it is OK for them to go is sometimes the right thing to do.
My mom was in the ER for heart arythmia. They had given her drugs but they wound up not working. I got there about 10am and by noon she kept saying there was someone - a man sitting in a wheelchair just outside the big glass window of ICU. She mentioned him more than once - she was concerned that someone just left him there. She said he had been there most of the night. Even though the chair was empty I went out of the room for a look. They came in to shock her heart followed by the priest and we had to leave the room. She did not make it. I just figured it was an angel sitting in the chair making sure she was not alone until the rest of us got there.