Whenever someone takes a trip to another land, they return with at least one of three things: memories of the experience, a souvenir, and photographs. While it is not a 1:1 ratio, the Last Supper can be compared to a souvenir or a photograph. It is a way for us to see something that reminds us of something or someone else. When we see the elements and partake in communion, it is like taking a souvenir off a shelf and remembering a trip, or looking at a photograph and remembering someone you love. All the emotions and memories associated with that event come to your mind, and in many ways, what was in the past becomes something in the present you can once again experience.