The Flesh Cannot Have Any Part In Revelation Simply Because It Will Not.  The flesh just cannot be reconciled to the Spirit of God.  It cannot be reformed or improved.

The  flesh, has not yet been redeemed. Romans 8:23, Galatians 5:17 The Bible talks about the coming day of redemption for the body of flesh, but the flesh is presently in bondage to Satan.

The spirit is freed and in communion with the Holy Spirit.

The mind can be directed toward the flesh or toward the spirit and God.

Keep in mind that none of this is true for the poor unbeliever, because the unbeliever is in bondage with body, mind, and spirit. Only Jesus can set a person free from such a bondage. The unbeliever continues in either self-righteousness or else self-condemnation, but is forced to obey Satan who is his or her rightful father and head.  Pray for every unbeliever you meet.  Pray that they be set free, that they are delivered from the bondage to their own thoughts, passions, and desires.  Pray that they come to saving belief in Jesus Christ.

Satan tries to get at the believer through the flesh. Satan uses things like sensual pleasure, entertainment, anger, malice, and greed to regain control of the believer.

The Holy Spirit of God speaks to the believer through the spirit of the believer. The Spirit uses the conscience, agape love, joy, peace, and patience to draw the believer closer to God.

The believer has the choice to be fleshly minded or spiritually minded. To be fleshly minded is death. To be spiritually minded is life.