Okay kiddo, so you know when you have a toy that you really love and you don't want anyone else to play with it? That's kind of like a secret. A secret is something that you don't want to tell anyone else, it's just for you or maybe just for your best friend.
But sometimes secrets can be important, like if you promise your friend not to tell anyone that they're going to have a surprise party. That's a secret you want to keep so that they can be surprised and happy on their special day.
It's like having a special treasure that you keep hidden away. You only show it to people you trust and that you know won't tell anyone else about it. And that's okay because everyone deserves to have their own special secrets.
But remember, sometimes it's important to tell someone you trust if you ever feel like something bad is happening or if someone is hurting you or someone else. It's always okay to share those kinds of secrets with someone who can help you.