Always make sure you know the full extent of a quest before embarking upon it. You don't want to get all caught up in some affair with some dragon or other after simply agreeing to what you think will be an evening of entertainment and fine dining with a group of dwarves. That's how these things always seem to start.

Transcript

Obi-Wan: So, what can you tell me about our mission?
Luke: What do you mean?
Obi-Wan: I gather we're taking the plans for the Peace Moon to Senator Binks on Naboo. But why?
Luke: Wait, I know this. 3PO said something about the moon being a weapon. It can destroy planets.
Obi-Wan: But they can't power it without...
Obi-Wan: Oh no.
Obi-Wan: The Empire has the Lost Orb?
Luke: She said something about that, yeah.
Obi-Wan: If they managed to outfox Jar Jar, then this is more serious than I thought. Come on.
{beat}
Luke: If the Empire has it, isn't it... found?
Obi-Wan: Always remember, Luke, the Orb is trying to evade its quester. It wants to be lost.
[SFX]: < buzz bee-oop >
R2-D2: {quietly} My precious...