" Turning off the machines is a technicality. Her mind is already gone. Her spirit lingers, but it's tied to her bed because we are. If we want it free, we have to do this for her.” Molly heard an echo of her father and saw no inconsistency. Yes, Robin's soul was in heaven. Her spirit, though, was different. It was the part of her that lived on in everyone she left behind. In that regard, what Kathryn said made sense. "

― Barbara Delinsky , While My Sister Sleeps