In reading through Luther's theological writings, edited by Lull, one finds the "A Meditation on Christ's Passion", which Forde also brings into the "On being a Theologian of the Cross". It's an amazing piece and I read the whole thing to Martin last night.
There are 15 points on what is profitable meditation and what is not. Here are some of what one should do:
They contemplate Christ's passion aright who view it with a terror-stricken heart and a despairing conscience. This terror must be felt as you witness the stern wrath and the unchanging earnestness with which God looks upon sin and sinners, so much so that he was unwilling to release sinners even for his only and dearest Son without his payment of the severest penalty for them. Thus he says in Isaiah 53:8: "I have chastised him for the transgressions of my people." If the dearest child is punished thus, what will be the fate of sinners? It must be an inexpressible and unbearable earnestness that forces such a great and infinite person to suffer and die to appease it. And if you seriously consider that it is God's very own Son, the eternal wisdom of the Father, who suffers, you will be terrified indeed. The more you think about it, the more intensely will you be frightened.
You must get this thought through your head and not doubt that you are the one who is torturing Christ thus, for your sins have surely wrought this. In Acts 2: 36,37 St. Peter frightened the Jews like a peal of thunder when he said to all of them, "You crucified him." Consequently three thousand alarmed and terrified Jews asked the apostles on that one day, "O dear brethren, what shall we do now?" Therefore, when you see the nails piercing Christ's hands, you can be certain that it is your work. When you behold his crown of thorns, you may rest assured that these are your evil thoughts, etc.
...Until now we have sojourned in Passion Week and rightly celebrated Good Friday. Now we come to the resurrection of Christ, to the day of Easter. After man has thus become aware of his sin and is terrified in his heart, he must watch that sin does not remain in his conscience, for this would lead to sheer despair. Just as our knowledge of sin flowed from Christ ans was acknowledged by us, so we must pour this sin back on him and free our conscience of it. Therefore beware, lest you do as those perverse people who torture their hearts with their sins and strive to do the impossible, namely, get rid of their sins by running from one good work or penance to another, or by working their way out of this by means of indulgences. Unfortunately such false confidence in penance and pilgrimages is widespread.
... After your heart has thus become firm in Christ, and love, not fear of pain, has made you a foe of sin, then Christ's passion must from that day on become a pattern for your entire life. Henceforth you will have to see his passion differently. Until now we regarded it as a sacrament which is active in us while we are passive, but now we find that we too must be active, namely, in the following. If pain or sickness afflicts you, consider how paltry this is in comparison with the thorny crown and the nails of Christ. If you are obliged to do or to refrain from doing things against your wishes, ponder how Christ was bound and captured and led hither and yon. If you are best by pride, see how your Lord was mocked and ridiculed along with criminals. If unchastity and lust assail you, remember how ruthlessly Christ's tender flesh was scourged, pierced, and beaten. If hatred, envy, and vindictiveness beset you, recall that Christ, who indeed had more reason to avenge himself interceded with tears and cries for you and for all his enemies. If sadness or any adversity, physical or spiritual, distresses you, strengthen your heart and say, "Well, why should I not be willing to bear a little grief, when agonies and fears caused my Lord to sweat blood in the Garden of Gethsemane? He who lies abed while his master struggles in the throes of death is indeed a slothful and disgraceful servant."
So then this is how we can draw strength and encouragement from Christ against every vice and failing. That is a proper contemplation of Christ's passion, and such are its fruits....Those who thus make Christ's life and name a part of their own lives are true Christians. St. Paul says, "Those who belong to Christ have crucified their flesh with all its desires. Christ's passion must be met not with words or forms, but with life and truth.
That's few things to think about.