Duality of Catadioptric Light

(I'M PLAYING WITH THE PERSPECTIVES)
Carl has something with mirrors, sometimes he gets paranoiac with them. Every time that Carl's front of one he'll begin to say that there is another person in his reflection (He's not crazy, I swear).
IDK if the few how are going to read this will understand the meaning, I don't count for it. Aaaaand IDK I what else to say so, that's all.