The tournament has not exactly been at the top of the list of priorities for European clubs down the years, with the Champions League seen as the ultimate prize.
But Cahill revealed how spending four days in Japan - where the competition is treated very seriously indeed - had driven home how significant it would be to be crowned world champions.
"When I came to Chelsea, I came to win trophies," the England defender said.
"This is a big opportunity to do that. It's a fantastic competition and one that doesn't come around very often.
"It's hard to get into this competition in the first place.
"We've travelled all this way and we now want to win it.
"We've got some Brazilians in our squad and it's absolutely huge for them.
"It's sunk in how big it is, and we want to do well in it now."