Can a person understand peace without understanding conflict? They can no more understand it than they can appreciate it. Peace with God does not come from ignoring the problem of sin. Peace with God comes from confronting the problem and finding the way of reconciliation.
“Much more then, having now been justified by His blood, we shall be saved from wrath through Him. For if when we were enemies we were reconciled to God through the death of His Son, much more, having been reconciled, we shall be saved by His life. And not only that, but we also rejoice in God through our Lord Jesus Christ, through whom we have now received the reconciliation.” (Romans 5:9-11)
“For it pleased the Father that in [Jesus] all the fullness should dwell, and by Him to reconcile all things to Himself, by Him, whether things on earth or things in heaven, having made peace through the blood of His cross. And you, who once were alienated and enemies in your mind by wicked works, yet now He has reconciled in the body of His flesh through death, to present you holy, and blameless, and above reproach in His sight—if indeed you continue in the faith, grounded and steadfast, and are not moved away from the hope of the gospel which you heard….” (Colossians 1:19-23)
Peace with God can only be found in one way; the hope of reconciliation with God comes only through Jesus. Is it not true that the most important peace-sign the world has ever seen came in the shape of a cross? It is if we understand the conflict. It is when we know who has won the war!