Okay kiddo, so imagine there are some people who believe that sometimes when a person dies, their spirit doesn't leave the Earth right away. Instead, it stays here and wanders around, sometimes even trying to communicate with us humans. That spirit is what some people call a "bhoot" or a "ghost".
Now, some people believe that these bhoots are really scary and can do bad things like haunt houses or even hurt people. But other people think that they're just lost and confused, and that we should try to help them move on to wherever they're supposed to go next.
In the end, whether or not you believe in bhoots is up to you. But if you ever see or feel something weird that you can't explain, it's always a good idea to talk about it with someone you trust, like your mom or dad. They can help you figure out what might be going on, and make sure you're safe and comfortable.