Realmatic Theory

Realmatic Theory refers to the structure of the Cosmere. There are three realms: Physical, Spiritual, and Cognitive.

“I have come to see that each power has three aspects: a physical one, which can be seen in the creations made by Ruin and Preservation; a spiritual one in the unseen energy that permeates all of the world; and a cognitive one in the minds which controlled that energy.”

—Sazed's earliest experiences after his ascension.

Physical Realm

All of Brandon's published works take place almost exclusively in the Physical Realm. Of the three realms, it is the most readily understood, as it behaves in much the same way as our universe does.

Spiritual Realm

All that is currently known about the Spiritual Realm is that it is the site of the afterlife in the Cosmere (at least for people from Scadrial, and likely for the rest of the Cosmere as well), and that when they are not in use, Shardblades are stored there.

Cognitive Realm

Extremely little is known about the Cognitive Realm. Brandon tends to be rather close-lipped on the subject.

Shadesmar

Shadesmar is the Cognitive Realm. its very existence was kept secret until the release of The Way of Kings, where it is seen briefly. It is how Hoid travels from world to world.

Its very existence was one of Brandon's best-kept secrets until the release of The Way of Kings.

• Spoilers*

Shadesmar is the realm Shallan and Jasnah travel to in order to Soulcast in TWoK. Ordinary Soulcasters do not travel to Shadesmar, and Shallan & Jasnah do as they are both Radiants.

References

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