The 21-year-old can barely contain his excitement ahead of contesting the tournament decider at the Maracana in front of home support
Selecao defeated Uruguay 2-1 to secure their passage to the final, while Spain beat Italy 7-6 on penalties after a 0-0 draw following 120 minutes of play in their last four tie.
And the 21-year-old - who recently joined Barcelona from Santos in a €57 million (£48.7m) deal - believes it is vital Brazil play without fear and seize the moment in front of them.
"This final is the dream match for any player," he told Marca. "It's the dream match for all players, a final that will be forever in football history.
"We must play without fear and not be afraid of Spain. Clearly this is a very large selection, full of talented players, but Brazil also has great quality and I am convinced we can win the game."
Neymar has enjoyed a fine tournament, scoring three goals and dispelling concerns over his pre-tournament form for the national side.
His efforts for Brazil mean he is one of six players in the running to win the Golden Ball prize, the award handed to the competition's finest player, but he insists he is only concerned about winning one particular trophy.
He added: "I scored three goals, all decisive. The first two, against Japan and Mexico, opened the scoring and I scored against Italy.
"But I'm not worried about that [Golden Ball]. I am here to help the team to win. If I help with a goal or a pass, great. But all I want is to beat Spain."