The Bright, is one of the Planes of Existence. It is the sixth Plane in the chain of Planes. It is between the Spiritual Plane and the Dark.
The Bright is a layer of the universe composed of everything that exists in the Mortal Plane. The difference is that everything, and absolutely everything in the Bright emits its own light, making the entire Plane seem like an immense white void.
The moment a person looks directly at the light of the Bright, they are instantly blinded. No place of moderate light will be able to be seen by that person anymore, and they will only be able to see everything that exists in the Bright Plane.
Luxakis
The Bright is the place with the greatest concentration of Mysti of Light in the Universe, being the natural home of the Luxaki, who are simply the Mystesis and Zuhaitesys of the Mysti of Light, as well as the Mysti Trees of that Mysti.