Ask — Do I still harbor past sins for which I have not accepted God's forgiveness?
Seek — Go to confession regularly. As part of your examination of conscience, review how you have accepted God's forgiveness for past sins in your life, and review how well you have forgiven others in God's name.
Knock — Meditate on Ephesians 4:32—5:2. St. Paul speaks of us as "beloved children" of God. What does being a child of God require of you? How does it affect the way you treat others, who are also God's children?
Transform Your Life — Let your life be marked by being a forgiver. Realize that when you hold on to something you are making a "god" of it, which close God out of that part of your life.
(The Power of the Cross: Applying the Passion of Christ to Your Life, p. 105.)