On One Side of the River

Long before I was born, my mom was clinically dead after getting a root canal. It got infected and her throat swelled up to the point where it blocked off her airways. She was gone for about 5 minutes. During that time, she saw a dark river but couldn’t see the other side, and instantly knew that it was “the other side.” Someone came up behind her and said, “It’s not time yet.” She never saw who it was said it. She woke up asking the doctors “Who just touched my shoulder?