Okay kiddo, let's talk about something called "Chi Rho." It's actually two Greek letters put together. The first letter is "Chi" which looks like an X, and the second letter is "Rho" which looks like a fancy P. When you put them together, it makes what's called a monogram, which is a special symbol that stands for something.
Now, the Chi Rho symbol has a special meaning for Christians. It represents the first two letters of the Greek word for "Christ". So when you see the Chi Rho symbol, it's a way of saying "Jesus Christ." It's like a secret code that Christians use to talk about their faith.
The Chi Rho symbol has been used for a very long time. It's been found on ancient Christian artwork, like from over a thousand years ago! It's still used today by Christians all over the world, especially around Christmas time. So now you know what Chi Rho means, and it's a special symbol for Christians to remind them of Jesus Christ.