I was reading a blog entry from Galacticbabe in which she gave a tongue in cheek look at what Luke was thinking after crashing on Dogaobah. While amusing, it got me thinking about what he really was thinking about and how did he not give in to soul-crushing depression and mind-numbing panic. He knows there are no settlements from his in-orbit scans, nobody knows where he is, there is no mention of this planet on records, he has no HoloNet access, any beacons he does have will only work on a planetary scale, and there's no technology beyond what he has on his fighter, which is also broken and irretrievable to boot. He's not even sure if Yoda is real at this point, and his mastery of the Force is non-existent. How in the Force could anyone not give in to despair at this point? It speaks alot to his eternal optimism and idealism. No matter how bleak, he always managed to keep a bright outlook. Even after finding Yoda, he never dwells on getting off planet. Granted he made a few snide comments about his current sourroundings, but he doesn't insist that Yoda help him or leave him alone so he can figure his course of action. Instead, he dives headlong into his training and accepts that his path of redemption will be revealed to him in good time. This is one of the most inspiring aspects of this sequence of events.