Colossians 3:2-4 English Standard Version
2 Set your minds on things that are above, not on things that are on earth. 3 For you have died, and your life is hidden with Christ in God. 4 When Christ who is your[our] life appears, then you also will appear with him in glory.
Our self or identity is hidden in Christ. Christ dwells in our heart by faith and we cannot be seen, attacked, damaged, destroyed, nor infected because our heart belongs to Jesus and Jesus protects His own. He is God and He is able to do all that.
Our minds are only one part of our eternal souls. That is why the mind needs to be retrained to align itself with our new identity which is in Christ. Paul’s expression of selflessness is poetic and noble but our minds have a difficult time in seeing that for ourselves because we are not Paul.
Galatians 2:20 English Standard Version (ESV) I have been crucified with Christ. It is no longer I who live, but Christ who lives in me. And the life I now live in the flesh I live by faith in the Son of God, who loved me and gave himself for me.
The mind renewed is selfless and agrees with our new identity in Christ who abides in our hearts by faith. That renewed mind is allowed to obey by faith and yet, it is still flesh and subject to all the attacks that our new identities are protected in Christ. Our feelings and emotions and thoughts are not attached to our will which now abides in Christ.
This creates a conflict which might be best described as a war of the mind.