I really wish the show had another few seasons to get into the lore and tie up the azure ahai/lion of the night to the white walker narrative (if there are in fact connections as seem to be implied). I just find myself not understanding the motives of the white walkers. Why now? Who summoned them to rise up? The show never really answered what it set up in its first scene with those body parts the nights watchman found. I don't know who laid them there. I don't know why they are laid like that. I don't know why they are laid here and not elsewhere. I don't know what laying them there even does magically, if anything. It was a great scene imo, but without being properly addressed it just feels like provocative lore bait.