How do maps of water and a map of land resemble an optical illusion like the two faces and a vase image?

Maps of water and land can resemble the optical illusion of the two faces and a vase by highlighting how perspective shapes perception. Just as the two faces can be seen as a vase depending on the viewer's focus, a map can emphasize either land or water based on the viewer's interpretation. For instance, a map might present land as dominant features, making water less noticeable, or vice versa. This duality illustrates how context and emphasis can shift understanding in visual representations.