If this has been discussed please feel free to link/redirect it to the appropriate discussion and i apologize for my ignorance. First of all the idea for this came from this video. Do give it a patient listen as a lot of what i theorize is based on this. In the comments section of the video one of the viewers mentions : Don Pontious : Look up Seelie and Unseelie court. Seelie - Children of the Forest - Unseelie - White Walkers. On further reading / mostly wiki-ing