The Cognitive Realm, a parallel dimension that exists alongside the Physical Realm throughout the Cosmere. In Shadesmar, the world appears inverted: land becomes an ocean of glass beads (each representing a physical object's cognitive identity), and oceans become empty expanses. It is possible to travel between worlds through Shadesmar, making it the highway of the Cosmere for worldhoppers. Different cultures have different names for it, but the experience of visiting is broadly consistent.