Matt and Mandy

What are you doing?

Changing the air filter.

Boy and dad fixing a car

What does it do?

It’s got an important job. It keeps dirt out of the engine.

Boy and dad standing by an open car hood

You know, you have a filter too.

What do you mean?

It’s the Holy Ghost. It helps you know when what you’re watching or reading isn’t good.

Boy looking at his dad

Like that movie we turned off last night?

Dad smiling

Right! The Holy Ghost helped us keep bad stuff out of our brains—just like a filter!

Boy and dad laughing in front of an open car hood

Yeah, it’s not like you can throw your old brain away and get a new one at the store!

Illustrations by Matt Sweeney