For context; the one on top is Korona, who has the star (the power) to manipulate ice. He has a curse that means in every life he will be the opposite of what he was supposed to be. Therefore, the one below is Korona before he gained the star; he didn't have powers (and was actually planned to have fire) and still had red hair. In this specific scene, it's Korona reuniting with his past self, without any spiritual connection.