I saw this on David Black's blog this morning, he calls it "Letter to Self."
Okay, Dave, the game's up. You're going back to Ethiopia, and you're going to pay a price. Go with God, and there is always pain. You can't be a Sunday Christian on a mission trip. I won't kid you -- the price is high for going to the nations. The pressure will be enormous. The trick is to get it working for you, not against you. Remember that.
Incidentally, you've got some excess baggage you need to leave behind. No power ties. Position won't cut it. Missions is a way of living, not a method. Unless you abandon your rights, you'll scuttle the mission. Thankfully, all souls are vulnerable to prayer. Even yours. If you ever forget about the power He's promised, you're done. Face it, Dave, you have a low pain threshold. But you can't test God's resources until you attempt the impossible. Can you do this? You bet!
One last piece of advice. Pray every day. Before you do something, pray. After you do something, pray. Thank God ahead of time for how He will use you. Yes, you. Because you're a co-laborer with Him. Because you have made a commitment to Christ, to the church, and to God's world. Jesus was a towel wearer and a basin bearer. And now He wants to live through you. Believe it or not, you can help people find Christ. Forget your inadequacies. Bury them. The truth is, you are in way over your head. Missions is tough, tiring, and terrifying. It's also terrific. Have faith that God will use your serving lifestyle. Willingly submit to His agenda each day, and put yourself out on a limb. He's worth it.
If you wrote such a letter, what might it say? If God wrote you a personal letter today, what do you think that would say?