After pulling my Arms and Armament Guide I quote page 1 of Notes: [quote]The source of Light is believed to eminate from the Traveler directly, or through the Traveler is a conduit (such distinction are as yet undetermined though theories supporting both each have long been argued.[/quote] What we do know is it's a major benefit to us while the Darkness works in a more enslaving conscription service method. Stemming from some ancient conflict that various races were dragged into (Like we humans and the Fallen (Which were once far more noble.)) And that both Light and Darkness were born from the Black Garden.