"It's sport, people get beaten. There's a winner and a loser all the time.
"At the moment we're on a bit of a roll and things are going good for us. We've got to keep striving to be better, otherwise someone will come along and take it off us."
Hansen expressed concern about the state of Australian rugby as it struggles to hold footing with the dominant football codes, rugby league and Aussie rules.
"Rugby is an important game, it's a lot more important than just us, we need them to be playing well and getting people to go along and watch them in Australia," Hansen said.
"It's a tough market over there because you've got some other sports claiming part of the market.
"We want them to go well.
"Australian rugby is competing with other sports that might just be ahead of them at the moment, from a fan point of view.
"We want a strong southern hemisphere base for the game, we want our closest neighbours to be strong.
"They'll come right though, I'm confident of that.
"They've certainly got the players to be a very good side."
Wallabies vice-captain Michael Hooper, 24, can't even remember when Australia held the trophy back in 2002.
"So much has happened between now and then, I want to be part of making one myself and making one with a great group of guys but we fell short this year," Hooper said.
"There's another opportunity down the track where we'll grab that."
-News.com.au