In a look at Ephesians 4, we see Christ has given gifts to  people in the church to train and raise everyone up to a measure of maturity in Christ, according to the measure of grace he's given to each of us.  As walk in this calling, we grow together in Christ. When these gifts grown in individuals, the Spirit binds us together and we centre our life more and more on Christ, the church grows in Unity and effectively fills the earth with his glory.