Who needs the lesson?

Recently I have had the opportunity to give several lessons and/or sermons. Because I am working with a youth group I have recently started a series on Atonement for the High School students, and I was asked to speak at a Saturday night service that happens every other week. That service is put on by missionaries here in Ouaga and is generally geared towards us.
In any event, I have noticed a pattern in my own life of how my messages come about. Sometimes I am given the topic as I was for the night service, grace, but the rest of the times I get to choose. Either way, you really have the freedom to make it your own, and as I go about preparing for these talks the same thing always happens. I evaluate my life and figure out what I need to hear. Or somehow I stumble across what I need to hear. Take the grace talk for instance, I was actually assigned a chapter from a book on grace, but that didn't apply directly to our situation, so I took the concept and reformed it. But what my end product came out to be, was a talk on freely receiving grace, and freely giving it away. Adding onto that, the idea that Paul has in Corinthians when Christ says, "My grace is sufficient for you". I ended by giving the charge to those there to lean on God's grace in all things, and to willing to seek out and dispense where where it is needed the most. Essentially, that sermon ended up being for at least one person, me. Ya, I realized I needed to hear that possibly more than anyone else there. I don't know if God worked in my life in such a way that I was ministering to myself, I don't know if that's possible, but in any case it really hit me. As someone who struggles with grace it was my own 25 minute long reminder that I'm a sheep in the midst of wolves, and J.C. my shepherd has my back.
So I don't know if that happens to a lot of pastors as they prepare their lessons, or teachers as they get ready to teach, but it happened to me. And so even if nobody else in that room needed to hear what God put on my heart, I know one person did. Me.