The Aetherial plane is infinitely expanding and producing Magic.
In the center of the Aether is the spherical plane of Dawn, the heart of the Aether.
The Aetherial Barrier is a complex barrier formed by Magic being pulled to the Aetherions that shape the barrier itself. Because Aetherions possess a natural Magical Vortex, Magic is pulled to the Aetherial particles, forming a natural magical barrier. Because the Aether is infinetly expanding, the Aetherial Barrier continues to pull Magic, strengthening the barrier.