An athame is a special tool that some people who follow certain religions use during their ceremonies. It looks like a knife but it's not used to cut things like regular knives. Instead, it's used to help with magic and ceremony rituals.
The athame usually has a black handle and a sharp blade that isn't meant for cutting anything physical. It's used to symbolically cut through energy and create a protective space for the ceremony or ritual.
Now, remember how when we draw pictures we use pencils or markers? Well, some people believe that when they use an athame during a ceremony or ritual, it helps them create a special energy that can't be seen but can be felt. It's like when we feel happy or sad but we can't see the feelings, we just know they're there.
So people use the athame to create good energy and to protect themselves during ceremonies. It's pretty cool, right? But remember, if you ever see someone using an athame, it's not a toy and they only use it for special occasions.