Another confusing ending for Zemeckis (probable spoilers)!

Rating: Null/10 (23 December 2000)

Just had the opportunity to see Cast Away with my wife. She liked it, and I wanted to like it, but the ending completely baffled me (but then again, most Zemeckis films wind up baffling me somehow).
The character Tom Hanks played, Chuck Noland, was quite believable, and most certainly well-acted. The scenes where he's by himself on the island were quite intriguing in the fact that he carried an entire hour of the movie alone, with no one to interact with (except "Wilson", of course).
Kelly, portrayed by the usually-uplifting Helen Hunt, was a very drab and even somewhat unnecessary character. Obviously, as the love interest, she was needed, but when Chuck got back to civilization, she might as well have been dead herself. The scenes with the two of them after he returns just seemed superfluous to the story.
But this all brings me to the ending, where Chuck is on the back-roads of Texas, delivering his final package to an "angel" of sorts. First of all, don't get me started on the package. The moviemakers could have at least let us SEE what was in the box, but noooo... Anyways, I didn't quite get the ending. What were Chuck's thoughts at that moment? Obviously, he's reached a crossroads, but from where? And to where? I honestly felt stranded on an island when I walked out of that film. The ending did NOT satisfy, and in fact, I just didn't get it.