Where Bloodraven wants her to be, duh. Am I doing it right Wooly?
Crap I forgot to copy/paste... err I mean type walls of text and threaten to kill you.
Bloodraven didn't control people. He generously handed out dreams, visions, and prophecies like flyers which have ultimate lead to the position the Seven Kingdoms are in now. Had he not interfered in the past, the WO5Ks would never have happened, Bran would not have fallen, etc. You say Littlefinger orchestrated it? Well, Lysa was mad and Littlefinger really only took advantage of the opportunities present to him. We'll have to see if all these crazy dreams disappear now that Bloodraven is dead. Every single time a POV character has a "strange dream" in the books he's touching Weirwood, whether it be a Maestar's staff, or a stump. Go back and re-read, even Jaime has a dream after placing his head upon the cut down trunk of a Weirwood.
Kinvara asking Vaerys, "Do you want to know where the Lord of Light lives?" is a crazy line that was dropped for some reason. We can infer the Lord of Light is a probably some sort of physical entity within the world, whether or not it's the 3-ER has yet to be known. R'llor is not a God though, I think that's unlikely. Might be an entirely different character, a sorcerer given fire-based magic like Bloodraven? Hard to say as Bloodraven's powers are intentionally left very vague, except that he can indeed warg into animals (crows), and alter the thoughts of characters indirectly, and even change time itself.
Supposedly, he was also able to give these visions of prophecy to the White Walkers who are threatened by dragons & certain messiah-like figures, such as Jon Snow. The books describe Waymar Royce as having a similar age and an exceptionally remarkable appearance, perhaps some Stark's blood. If you look at his death, it's one hell of an elaborate trap set for him. The White Walkers even let his companion escape, but six descended on Waymar himself. Poor Waymar never stood a chance. Six walkers (and wights for decoys) for one man is so out of character.
...or so that's how the theory goes. Same thinking goes with the ambush by Benjen Stark, and the White Walkers starting to attack around the time that Bloodraven had ascended. They're after Starks & Jon, they've left the wildlings alone otherwise.
Weirwood Leviathan's theory is that Bloodraven influenced White Walker thinking to view humanity as a renewed threat, much like humanity now views the White Walkers thanks to the prophecies of Azor Azai and the TPTWP. All of those prophecies emerged 40 years ago, almost exactly when Brynden became Bloodraven. That's the jist of it, because as of now there's really no other good theory or event that lines up with the White Walker re-emergence other than, "hey guys let's go kill a bunch of people every X amount of years." His essays are so well written and thought out, and he's pointed out video evidence on the show that shows that D&D have been using heavy, heavy foreshadowing that nobody else has spotted, going all the way back to S1.