Okay kiddo, so binding and loosing is a special power that some people believe the leaders in certain religious traditions have. It means that they have the ability to either allow or forbid things to happen or have certain effects.
Think of it like a magic spell that only these special people can use. When they "bind" something, they are stopping it from happening or making it powerless. When they "loose" something, they are allowing it to happen or making it more powerful.
For example, let's say someone is having a really tough time with a bad habit like smoking. They might go to their religious leader and ask them to bind the habit, meaning to stop it from having power over them. The leader might say a prayer or perform a special ritual to do this.
On the other hand, let's say someone is really struggling to achieve something, like getting a new job. They might ask their religious leader to loose blessings on them, which would mean allowing good things to happen to them.
So basically, "binding and loosing" means having a special power to control what happens to someone or something based on the beliefs and practices of a certain religion.