Okay, kiddo. So, a peace testimony is a belief or practice that some people follow which means they try to live in a way that promotes peace and non-violence. It means they try not to fight or hurt others, and they work hard to make the world a more peaceful place. This can include things like speaking up when they see someone being bullied, helping others who are hurting, and supporting groups or organizations that work for peace. It's kind of like taking care of your toys and making sure that everybody gets along when you're playing with your friends. Only, instead of toys, it's people, and instead of a play date, it's the whole world. Does that make sense?