Ohh it’s a concept in Islam.
Nazar or The evil eye is a term used to describe misfortune that is transmitted from one person to another out of jealousy or envy.
The misfortune of the victim may manifest as sickness, loss of wealth or family, or a streak of general bad luck.
Like for example you’re wearing really nice shoes right? and i tell you they look amazing, maybe i could wish i had the same too, a while later something’s gonna happen they’ll get stained or ripped etc you get me?
Hope that explains it.