It is often a stated fact that there exist no vacuum in nature, every single physical place or space on earth is occupied by someone or something , and the same applies in the spiritual world, though not manifest to the physical eyes but everywhere is occupied and dominated either by angelic, or demonic beings that have power to influence the physical world and what happens there in.
From the day a child is born, its environment begins to culture how it thinks, believe, and behave, and usually this first interactions are not godly, and coupled with its inherited body of sin at birth, a child’s natural instincts are towards the flesh and it’s desires.

Unfortunately, since the fall of man, this state of carnality has become the default setting of all mankind. But God in His infinite mercy will not give up on His creation and the jewel there of; man.  God has since commenced the process of man’s redemption, beginning from the Saving of Noah, to the Call of Abraham, to the Separation of Israel, and ultimately the Revealing of His only begotten son, Jesus Christ as the propitiation for the sin of mankind.
This story of redemption establishes the essence and only pattern by which man can move from death to life. Faith in the only begotten son of God is the only pathway out of carnality and into life.
1 Timothy 3:16 KJV
And without controversy great is the mystery of godliness: God was manifest in the flesh, justified in the Spirit, seen of angels, preached unto the Gentiles, believed on in the world, received up into glory.
 
Godliness is the how of the what we do as Christians; it is the physical expressions of our values as Christians. No sane man is a thoughtless being, whatever a human does is an offshoot of  faith in God or lack there of, and this is congruent to his worldview of what life is and how it should be lived.
Simply put, godliness is living a life that is tailored after the pattern, example, and word of God as ultimately revealed and expressed by the Lord Jesus Christ.
 
The carnality of man, and the righteousness of God are mutually exclusive, carnality leads to death whilst godliness leads to life. It therefore goes without saying that if the natural man is carnal by instinct, then the godly man is spiritual by practice. Thus, to change the trajectory of carnality, it must be displaced by godliness.
Romans 8:6 KJV
For to be carnally minded is death; but to be spiritually minded is life and peace.

Practical Ways To Enthrone Godliness
 Figuratively, the mind is like the soil that holds the seeds of faith, and its fertility determines yield or harvest.
Like all things related to God, godliness too starts with and is nurtured by faith, and faith comes by hearing, and hearing by the word of God.
The mind is the throne room of the human spirit. But unlike in the physical realm, in the spiritual, we live in an atmosphere. The room is the atmosphere we create for our spirit, it determines whether we are nourished, or we remain famished. Whenever the atmosphere is right, we experience an ever increasing dimension of God, but if otherwise, we gradually become cutoff from the experience of God.
Here, it is of utmost importance to state that carnality is simply the absence of godliness, and not the opposite of it. Just as darkness is the absence of light, and not the opposite of it.
It is atrociously erroneous to believe that satan is the opposite of God, that supposition tries to put both in the same class with equal powers to reign per time. But we know that whenever light shows up, darkness must recede. It is absolutely impossible for the Creator, and his creation to be in the same rank or class.

Romans 12:1-2 KJV
I beseech you therefore, brethren, by the mercies of God, that ye present your bodies a living sacrifice, holy, acceptable unto God, which is your reasonable service. [2] And be not conformed to this world: but be ye transformed by the renewing of your mind, that ye may prove what is that good, and acceptable, and perfect, will of God.
1 Timothy 4:8 KJV
For bodily exercise profiteth little: but godliness is profitable unto all things, having promise of the life that now is, and of that which is to come.