[That is] because the mind of the flesh [with its carnal thoughts and purposes] is hostile to God, for it does not submit itself to God’s Law; indeed it cannot.
(Romans 8:7, Amplified Bible)

The carnal or sense ruled mind is your five senses (sight, smell, hearing, taste, touch). It will always be at odds with the spiritual power of God.

Trust in the LORD with all your heart, And lean not on your own understanding; In all your ways acknowledge Him, And He shall direct your paths.
(Proverbs 3:5-6)

Your mind does not see or understands the spiritual power of God.  When you are born again your spiritual mind is opened to understand the Word and power of God.  The Word of God is Spirit.  John 6:63 states, “It is the Spirit who gives life; the flesh profits nothing.  The words that I speak to you are spirit, and they are life.”  When you see, live and pray in the Spirit, you are in agreement with the Word and power of God to move mightily in your life. Your sense ruled mind will not accept or believe the spiritual power of God.  The key to receiving a miracle is to see and expect it through your spiritual eyes and heart.  Praying in the Spirit is the greatest power to strengthen and open your Spirit to the power and blessings of God.

There is therefore now no condemnation to those who are in Christ Jesus, who do not walk according to the flesh, but according to the Spirit.
Romans 8:1
For those who live according to the flesh set their minds on the things of the flesh, but those who live according to the Spirit, the things of the Spirit.
Romans 8:5
For to be carnally minded is death, but to be spiritually minded is life and peace.
Romans 8:6
while we do not look at the things which are seen, but at the things which are not seen. For the things which are seen are temporary, but the things which are not seen are eternal.
2 Corinthians 4:18
Now faith is the substance of things hoped for, the evidence of things not seen.
Hebrews 11:1