Granted, it took me about three times to read it and understand what it was saying - but man when it got in my brain it was good!
Ponder on this, the growth of a plant set in the perfect conditions pales in comparison to that of the spiritual growth of someone who longs for for God's work in their lives! I love the illustration of a plant because the plant offers nothing to it own growth, but rather relies on its surroundings.
Christian, if you long after the things that God has already planted inside you, there is nothing more you need than more of that! The best news of all is that more than anything God wants to give you more of Himself! You have as much of Christ in your life as you want - so, want more!
That's good news!