What is the meaning of the final scene of Being There, where Chance walks on the pond's surface?
The film's Wikipedia page says something about a metaphor of Chance being seen as a messiah, but I don't find that too convincing.
The metaphor is pretty strong: he literally walks on water.
It means he is tremendously blessed, always ending up on the right side of whatever situation he falls into. In a very short time (less than a week?) he goes from homeless pauper to national celebrity and presidential adviser. Lucky in love and whatever he wants to do. All without (apparently) a clue about how life really works. All he knows is the superficial—which he has apparently studied intently via watching television.