>>213326420
It's a pertinent message, a lot of people forget that they're going to die someday, especially today where death is such a taboo and typically very far removed from society. The visceral image of a bone temple being something that most people initially view as creepy or evil turning out to be a display of deep respect and love is a pretty interesting twist, but I wouldn't say the message of remembering death was a "sudden swerve" seeing as the doctor and his weird rituals are foreshadowed pretty heavily from early on in the movie. Also, we don't know what the 12 year old boy's exposure to death has been, the villiage might try to hide it from the kids as much as possible. The dialogue between him and the old lady just before he goes out on his expedition seems to suggest that's the case seeing as she has to make sure he's aware of the rules before they go out.