Salvation is described in the New Testament is existing in Christ and only there can we find spiritual blessings (Ephesians 1:3). We are baptized into Christ (Galatians 3:27) and added to the Church, his body (Acts 2:47; Ephesians 1:22-23).
Burton Coffman sums it up succinctly in his commentary on Galatians.
God is in Christians.
Christians are in God.
Christ is in Christians.
Christians are in Christ.
The Holy Spirit is in Christians.
Christians are in the Holy Spirit.
The mind of Christ is in Christians.
The word of Christ is in Christians.
From this, we can clearly see why transformation is so important (Romans 12:1-2). We have a very high calling as God’s people and that brings a lot of responsibility (Ephesians 4:1). Yet, it will all be worth it in the end! Praise be the Lord!