You did but did you take into account it could be kanji or kana or hiragana or katakana?I bet if you looked into each one you`d find the real message and every one here at naruto base and other sites would be very thankful.Then you`d be the one who figured out what pain is before the manga tells us and its pretty obvious kishimoto made the message visable in the first place.He wonts to see how many of us can figure it out.
Im posting to answer the yahikos body question.I think like on the post abot samsar that each pain is in that link since theres a world of animals and one body uses animal summons a theres the hungary ghost realm wee they eat life force and the fat body ate chakra then there the human realm and that one uses taijutsu.