<I always had the idea of another civilization with the Light. The big part of this was trying to make them enemies naturally. I went from making them ravaged by the Deep but managing to survive, using the Light to get back on track and using it to remove all Dark from the universe. The next idea was a pure Light race that seeks to make everything Light, making the argument that Light is the natural progression of the universe due to life and the only way to save it from its heat death. Everything else is either a necessary sacrifice or an obstacle for this purpose. The problem with making another race that uses only Light is the mental stuff. Light is meant to help, to improve. It warps the natural law in order to benefit its wielders or those around it. To get the Light from the Traveler is to review your life and be devoted to helping others. While some people blur this line, like Uldren, I'm pretty sure a lot of them were genuinely helpful at the end of their first lives. Ghaul took the Light, the opposite of giving is taking. It's why his Light was corrupted despite still being Light. So if you're making a Light based race, things get extremely complicated if you want Light instead of corrupted Light.>