Okay kiddo, let me explain to you what a Session of Christ means. So you know Jesus, right? He's a very important person in Christianity. After Jesus died and rose again, he ascended into heaven to sit at the right hand of God. This event is called the Ascension.
Now, Session of Christ means that Jesus is sitting in a very special and important position next to God in heaven. It's like the President sitting in the Oval Office, but way more important! In this position, Jesus is the ruler and the judge of the world.
When we talk about Session of Christ, it's often connected to the idea of judgment day. One day, when the world ends, Jesus will come back to Earth and judge all of us on how we've lived our lives. Those who have followed his teachings will live with him forever in heaven, while those who didn't will sadly not.
So remember, Session of Christ means Jesus is sitting in a very important position as the ruler and judge of the world - and we should all follow his teachings so we can be with him in heaven one day!