The cosmological framework describing the three Realms that make up reality in the Cosmere. The Physical Realm is the material world as perceived by the senses. The Cognitive Realm (Shadesmar) is the realm of thought and perception, where ideas and concepts have physical form. The Spiritual Realm contains the fundamental truth of things - identity, Connection, and Investiture in its purest form. All magic systems interact with these three Realms in different ways.