Before "The Door" (season six, episode five) exposed us to the tragic meaning behind "Hodour," fans struggled to understand how Wyllis became mentally damaged. Some believed a horse kicked young Wyllis in the head. Others, like Reddit user gbinasia, suggested Wyllis was a warg who would inhabit Lyanna Stark's white horse. Wyllis would use the opportunity to gain affection from Lyanna and delight in the freedom of roaming the countryside. However, as time passed, Wyllis came close to losing himself in the horse's mind or perhaps the horse's mind collapsed under the weight of numerous wargs, leaving a half-man, half-animal "Hodour" hybrid behind. Until the truth surfaced, this idea of a weakened mind state — a boy trapped between his own mind and the horse — provided a relatively plausible explanation as to why Bran could warg into Hodour. Unfortunately, the truth proves much more tragic.