"You are in Me and I am in you." -Jesus

Christ In You
The Helper is IN YOU & with you forever. The Helper is the Spirit of truth. You know the Spirit of truth because He lives with you and is IN YOU. I live & so do you. Know that I am in My Father, and you are IN ME, and I am IN YOU. (John 14:16-20)
Because the Spirit of God dwells IN YOU, you are not in the flesh but IN the Spirit. Christ is IN YOU. Your body is dead because of sin, yet your spirit is alive because of righteousness. But the Spirit of Him who raised Jesus from the dead dwells IN YOU. He who raised Christ Jesus from the dead will also give life to your mortal bodies through His Spirit who dwells IN YOU. (Romans 8:9-11)
Your body is a temple of the Holy Spirit who is IN YOU. (1 Corinthians 6:19)
You are a temple of God and the Spirit of God dwells IN YOU. (1 Corinthians 3:16)
God is the one who works IN YOU, both to desire and to do the good & loving things He desires. (Philippians 2:13)
Little children you are from God and have victory over the spirits of antichrists; because greater is He who is IN YOU than he who is in the world. (1 John 4:4)
The glory of this reality is super-abundant, Christ is IN YOU! He gives you hope that you will see the riches of His glory unfold in your daily life. (Colossians 1:27)
Jesus Christ is IN YOU! (2 Corinthians 13:5)

You In Christ
By God's doing you are IN CHRIST JESUS. Jesus became to us wisdom from God and righteousness and purification and restoration of value. If you're going to rejoice, rejoice in the Lord. (1 Corinthians 1:30)
You are IN CHRIST! you are a new creature! The old things passed away! Look at the new things that have come! (2 Corinthians 5:17)
There is no condemnation for you because you are IN CHRIST JESUS! (Romans 8:1)
Consider yourselves dead to sin in the same way Jesus is dead to sin. Consider yourselves alive to God IN CHRIST JESUS in the same way Jesus is alive to God. (Romans 6:11)
You were formerly darkness but now you are Light IN THE LORD; walk as children of Light. (Ephesians 5:8)
Your life is hidden with Christ IN GOD. Christ is your life. (Colossians 3:3)
We, who are many, are one body IN CHRIST, and we are each members one of another. (Romans 12:5)
We are all equally one IN CHRIST JESUS. (Galatians 3:28)

You being in God & God being in you is like a bag in the ocean.
It is in the ocean, & at the same time, the ocean is in it.