«كُل عِينْ قُصَادْهَا حَاجِبْ»

The image comes from the body. The eyebrow sits just above the eye, and the saying treats it as a natural shield that takes the blow or deflects harm before it reaches the delicate eye below.

Extended to people and situations, it says that whatever is precious or fragile seldom stands alone. A guardian is usually close by, so harming the vulnerable means first getting past its defender. The stress is on protection, not on watching or spying.

Suitable when pointing out that someone or something that looks exposed actually has a defender close by. It can reassure the vulnerable party, or remind a would-be aggressor that a protector stands in the way.