Basically all of the kanji has the literal and philosphical meaning. Have you guys seen "Hero" (starring Jet Li)? In that movie, there was like 13 ways, or was it more, to write the kanji for "sword" and each has different meaning.
Anyway the last (secret) way of writing the kanji for "sword" involves something like the unification between the man and his weapon, therefore no longer needing the sword, no longer needing aggression.
I forgot what the explanation was exactly. I like this movie, "Hero", because of its philosophical values. It also has kung-fu action, romance, and a bit of comedy in it. I love the ending. It's so... dramatic.