25I have become its servant by the commission God gave me to present to you the word of God in its fullness— 26the mystery that has been kept hidden for ages and generations, but is now disclosed to the saints. 27To them God has chosen to make known among the Gentiles the glorious riches of this mystery, which is Christ in you, the hope of glory. (Colossians 1:25-27)
Christformation in you is the 'mystery' as mentioned in the book of Colossians by Paul, the apostle to the Church of Jesus Christ.The end result of christformation in you is Christ dwelling in you fully-Christ In You.How it happens is the mystery because eyes cannot see the formation of Christ in you.