"Healing through faith" is a state of being that you must strive for throughout your existence. The concept of it is to identify your wound, uncover it, provide the proper treatment, forgive, and move on.
The pain is there. At times, it feels as though nothing else matters. How do you move pass your pain to desire a more fulfilling life? The answer lies behind your faith. Do you have enough faith to believe that God has better things in store for you? Do you understand the magnitude of His love for you? If you have any inclining as to how much He loves you, you can embrace that love and push forward. Pushing forward is what helps to get you through the heartache. God's promise is to give you peace and joy. Your faith in God helps you get to the joy that He promises you.