Rey is mesmerized and fixated on Snoke's eyes - much like the Dark Side cave on Ahch-To.Just before the duo arrives inside of Snoke's throne room, Rey realizes Kylo's unbalanced emotions are about his feelings for her.Kylo Ren saw a glimpse of Rey's past when they touched hands.Rey informs Kylo Ren that the weapon 'called out' to her at Maz's castle. He says, once again, that the Skywalker lightsaber is his.