"Followers of the Lord of Light believe that their Lord is always at war with his evil opposite deity," the Redditor writes. "There's [sic] always a dichotomy. Light vs Dark. Good vs Bad. Fire vs Ice. Everything in this world has an antithesis." Furthermore, "The lord of light supposedly has a "purpose" for everyone. Consequently, everyone supposedly brought back by the lord of light helped Arya defeat the Night King."
Beric and Jon Snow, who were both brought back to life by the Lord of Light, played significant roles in the Battle of Winterfell, resulting in Arya killing the Night King. Then, the Redditor points out, "Bran gave Arya the dagger, and offered himself as bait. So, like the Lord of Light, everything Bran has done recently also ultimately leads to Arya defeating the Night King."
This theory suggests Bran has been warging around and manipulating events in order to lead to Arya's defining moment. "Bran has been manipulating the plotline the entire time. He knew exactly how the battle was going to end. He knew exactly how to kill the Night King, because he set the trap himself," the fan writes on Reddit.
"While warging during the battle, he was likely manipulating events to lead to the final conclusion," user DontMicrowaveCats continues. "Everything he has done has revolved around getting the dagger to Arya and getting her safely to the NK. That plan was set in motion all the way back in Season 1. Future Bran made sure that dagger was sent to kill his childhood self. He put the key piece in play ... All of the 'magical Lord of Light moments' that are supposedly the God's work, are actually Bran manipulating the past, resurrecting people and making sure Arya got the knife and made it to kill NK."
This, in turn, would mean Bran has been created "fire wights" by reviving people like Beric and Jon Snow. If true, those wights might also be destroyed if Bran dies, as happened after Arya stabbed the Night King in this week's episode. And GoT creator George R.R. Martin has actually called Beric a wight: "He’s not a living human being anymore. His heart isn’t beating, his blood isn’t flowing in his veins. He’s a wight, but a wight animated by fire instead of by ice, now we’re getting back to the whole fire and ice thing."
WATCH: 'Game of Thrones' Season 8 Episode 5 Trailer.