[Zangetsu makes a thoughtful humming sound, rubbing his chin]

Could be flashes from another life, sure. Or it could be something from your current life that you forgot. [he leans in, probing at the kid with his reiatsu, feeling him out. Enjoy that creepy icy feeling, Eren. Thankfully, he withdraws after just a few seconds] My guess'd be the latter, though. Your soul has barely any energy to it at all! And you need a lot to get flashes of former lives. Hell, even most mediums can't do it. [he leans back, picking at his claws] Maaa, stranger things have happened!