Wounds that haven't been healed can have disastrous results - broken relationships, addictions, depression and ultimately a loss of hope. If we experience wounds that are similar to the original wound, that first offense is in turn experienced again and again. Loss of hope brings on the attitude of "this is how it will always be," 'life will never get better." "Always and never," are words that creep into our every day vernacular that eventually (if not immediately) affect our realities - thereby infecting our future with negativity. Focusing on the wounds instead of the underlying cause repeats the lies of always and never, clouding truth - life is constantly changing and there are endless possibilities to the eventual outcome.
Unhealed wounds also cloud Truth, for which I mean Christ, God's Son.
We have a choice on how we handle our wounds - trust God or not. Focusing on Christ through prayer, reading his Word, building community, serving others, therapy, these are all vital in the healing of our wounds.
A prior roommate of mine rescued a bird and there were many times I wished the bird would die. She was loud, annoying, inconvenient, and in my opinion a waste of space. But Jesus said that no sparrow (probably the most boring, basic of all birds) falls to the ground without God knowing about it, and we are much more valuable to Him than they.
Wounds are inevitable, the price of living in a broken, sinful world; sometimes our choices play a contributing role, but regardless Jesus came so that we would be restored and have life to the full in spite of these wounds - in spite of the world being broken and sinful. Because of Jesus all wounds are healed. Through him, broken hearts are mended, broken trust is restored, and broken dreams are redeemed: this is the power of the Cross - turn to Him and be set free. He loves you, and His obedience on the cross overcame all wounds.
Still not convinced? Isaiah 53:5 of the KJV says, "...by his wounds we are healed."