Sam Warburton has warned Wales that they have "won nothing yet" despite Saturday's euphoric 22-10 World Cup quarter-final win over Ireland.
The captain led from the front as tries from Shane Williams, Mike Phillips and Jonathan Davies booked a semi-final clash with France next Saturday.
"I was just smiling walking off the pitch," said open-side Warburton.
"But we haven't won anything yet. We have to refocus on Monday and look forward to the semi-final."
Wales have already achieved their best World Cup performance since the inaugural tournament in New Zealand in 1987, when they finished third.
Warburton and his side have their sights set firmly on bettering that record this time, but admits that having the media focus on hosts New Zealand has allowed them breathing space to concentrate on preparations.
"[Wales lock] Alun Wyn Jones said on the pitch at the end that we haven't won anything yet and we have to make sure we keep our feet on the ground," added the 23-year-old Warburton, who took over the captaincy when hooker Matthew Rees was ruled out of the tournament with a neck injury.
"So I think that is the feeling throughout the whole camp.
"All the players and management are really supportive and it's actually a bit easier out here, if anything.
"Back home it's pretty chaotic in the Six Nations in Wales with all the press and over here all the eyes are on the All Blacks."
Warburton admitted there might be a few low-key celebrations, but that he would be sticking to his self-imposed alcohol ban that has been in place since last season's Six Nations.
"I'm on the water obviously, but there'll be a curfew and maybe one or two [drinks] but we've got to realise that we've got the biggest game of our lives next weekend."
Scrum-half Phillips, whose blindside sneak claimed a Wales try at a crucial point in the match with the score tied 10-10, echoed the thoughts of his captain.
"The boys are obviously chuffed, but we are telling ourselves that it's only one game, it's only the quarter-final, so there is a long way to go," Phillips said.
"I feel sorry for Ireland. They are great guys, and I got to know them really well on the 2009 Lions tour.
"They are great people and I feel sorry for them, but one of us had to go home and thankfully it wasn't us."