If you’re the one looking in the reflecting pool, you’ve got to dive into the reality of who you are. The way to the depths lies through the surface. If you care about someone caught ip in their own reflection, stay on the safe side of the event horizon or you’ll be sucked in. Save yourself! You’re Echo in the story. The most you can do is call their name and hope they look away from the pool. Only they have the power to break the spell.