“But we have the mind of Christ” (1 Corinthians 2:16).
Biblically speaking, the mind is not merely the intellectual machinery of the brain; it refers to the disposition of the heart that drives the intellect. The heart exercises a strong gravitational pull in one direction or another and the “mind” is the intellect, acted upon by this gravitational pull of the heart, which is the sum of our dominant desires. That pull is strong enough to determine our actions
To have the mind of Christ then, is to have a mind like that which He exhibited in His carnality. That means we must surrender our hearts completely to God so that there are no unholy desires; submit every contemplated course of action to the judgement of His Holy Spirit and the scriptures. If the scriptures condemn an action or an object, we must accept that judgement and conform to it, no matter how hard it is and how we may feel about it. In this we must be completely honest with ourselves.
To want something, or think that we want it, and then turn aside from it because we see that it is contrary to the wishes of God, is to win a great battle in gaining the mind of Christ and overcoming the fleshly nature that leads to death. This is more pleasing to God than any amount of verbalizing of praises to Him, because it is Christ in action; in you!