sword is NOT the holy body
Goshintai or the holy body in the shrine is a mirror, not a sword. This shows how little the director understands about Yasukuni shrine. Also, it should be mentioned that the priest of the shrine had declined his permission to shoot, yet the director went ahead to shoot regardless of his request.
Having opinions is one thing, but blatantly misinforming on a documentary style film is simply malicious. If you're really curious about the whole Yasukuni controversy, it is advised to go for different source than this film.