The episode was really supposed to be how everyone handles grief differently. But it’s also about Alicia dealing with the ambiguity of death. The inability to access the deceased and his thinking. It’s a little bit of a detective story, but about the mystery of a loved one’s last moments and their frame of mind. When someone you love dies, you want to stand where they stood, and see what they saw. In the absence of facts, you have to create your conclusion — which is what Alicia does.