Luiz Felipe Scolari's side are looking to win the tournament for the sixth time in history and for the first time since 2002 in their homeland when they get their campaign underway in June.
The Chelsea man is adamant that his side must rise to the challenge in playing in front of their home crowd and not let it stifle their play.
Oscar told the Daily Mail: "I've been playing in London, with Chelsea, for two years now. For the many overseas Brazilian players like me, it will make a World Cup back home even more special.
"I know what it feels like to play in front of a Brazilian crowd. It's important to recognise our responsibilities and take them seriously as players, but not to let the pressure inhibit us.
"When the whistle blows for kick-off, we have to make sure we let the joy in our football come through."
Brazil face Croatia in their opener on June 12.