Where does Eddie arrive when he meet the third person Ruby?

Back in Heaven, Eddie notices a grand mountain range surrounding a black lake. Eddie sees a light in the distance and follows it through the snow. He eventually arrives at an old-fashioned diner with an “Eat” sign above it. When Eddie peers into the diner, he sees people from all different eras in history talking and eating but paying no attention to the figure outside the window. Finally, Eddie spots a familiar man sitting in the corner booth - his father. Eddie doesn't actually meet his father but soon meets Ruby.