To sum up:
There has been inquiry about what the preacher said to one of the characters who was doubting his faith. I wrote it down. (Yeah, I'm the geek who takes notes in the movie theater.)
"You have to earn God's presence, then recognize it, and act on it."
I don't know if I'd have worded it quite that way (especially the word "earn"), but the idea behind it seems to be that you can't just go your merry way without reaching out the Lord and then expect to recognize Him working in your life. And when you do recognize Him in your life, you have to respond with action.
At least that's how I understand the preacher's words.