Okay, so imagine you're playing hide and seek and you don't want anyone to find you. You might have a secret hiding place, right? Well, some people believe that there are bad things (like bad energy or evil spirits) out there that might try to find you and hurt you.
So, to protect themselves, some people use something called a nazar. This is usually a little amulet (like a necklace or bracelet) that they wear. The nazar is made up of special colors and shapes that are meant to ward off the bad things.
You might see a nazar that has a blue bead in the middle with a lot of little circles around it. That blue color is supposed to be really powerful in keeping the bad things away. And the circles are like a shield that protect you from harm.
Some people wear these amulets all the time, even when they're sleeping, because they believe that the bad things might try to sneak up on them at any time. But, no matter what, wearing a nazar is like having a special superhero power that keeps you safe from harm.