In Istanbul, these blue eyes are not just decoration. They are a gesture. Nazar — the evil eye — placed to protect against what should not pass through. Here, it multiplies across a door until protection becomes pattern. Circles of deep cobalt and softened turquoise overlap like a field of watchfulness. Alert without alarm. Even the heavy lion-head door knockers become part of the ritual — guardians holding guardians. Found in the city's older layers, where belief still lives in daily detail, this wall is not about fear. It’s about care made visible.