The La Selecao marksman had endured a largely frustrating time at the tournament prior to his second-half header, and the forward told TV Globo that the lack of goals was something that had been playing on his mind.
He said: "This drought was bothering me, and the bad performances. But I think we all evolved, as a team.
"This evolution during the World Cup was a natural thing to expect. We needed this evolution, and to show that aggressiveness we've shown before in this World Cup.
"Three, four players fighting for the ball - that's the kind of attitude we need."