Simple math today . . .Flesh + World = Death . . . Spirit + World =Life
Paul is very clear here. To live in the flesh and to please our carnal lusts and desires will lead to eternal death, or enmity with God. Life in this world and by this world's standards will indeed separate us from God eternally!
However, living by the Spirit of God and His desires will lead to eternal peace and life with Christ! To love free of all the anxieties and tensions this world places upon us we must live by Spiritual Truths of the bible! We need not be afraid (Isaiah 12:2) nor anxious for anything.(Philippians 4:6)
It begins in our thought processes (Romans 12:1-2) and leads to the heart! (Ezekiel 36:26) Believe and live!!!! (John 11:26)