Our focus would be our mind not our spirit EG. Our spirit has received the Spirit of Christ, which is Holy Spirit when we are born again. The Holy breath of God.
Hard to understand? Yes, I just accept it.
~Rom 8:9 You, however, are not under the control of the human nature but under the control of the Spirit, since God's Spirit lives in you. And if anyone does not have the Spirit of the Messiah, he does not belong to him.
Rom 8:10 But if the Messiah is in you, your bodies are dead due to sin, but the spirit is alive due to righteousness.
Rom 8:11 And if the Spirit of the one who raised Jesus from the dead is living in you, then the one who raised the Messiah from the dead will also make your mortal bodies alive by his Spirit who lives in you.
Our body is dead but our Spirit is alive. We don't take our bodies into heaven with us. Death is in our body. The last enemy.
So, by our Spirit which is what we are now. Spiritual man or woman. We rule over our soul, our mind, our body. And in Spirit, again is a fixed position. We were fixed in flesh until circumcision by the power of God cut it...the axe of Holy Spirit to the tree of knowledge of good and evil, that the tree of life, Jesus, is what we produce.
So rule over that which causes trouble....declare it dead without power in our life. That is denying the flesh.