Elantris is like a massive power conduit. It focuses the Dor, strengthening its power (or, rather, the power of the Aons to release it) in Arelon. This far away from Elantris, however, the Aons are about as powerful as they were before Raoden fixed Elantris.
If you consider it, it makes logical sense that the Aons would be tied to ELANTRIS and Arelon, yet would work without them. The Aons had to exist before Elantris—otherwise, the original Elantrians wouldn’t have known the shape to make the city. Their study of AonDor taught them a method for amplifying Aon power.
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