The playmaker has been ruled out for the rest of the tournament after suffering a fractured vertebrae in the 2-1 quarter-final win against Colombia.
It has raised fears that Brazil, already very reliant on Neymar, will come up short against Germany in the semi-final on Tuesday, but the player insist they will still win it.
“Brazilian people, players, staff, fans. This is a hard moment, and I don't have the words to define what's going through my head and my heart,” Neymar told the fans via CBF TV.
“I just want to be back as fast as possible, when everyone least expects. I want to say thank you for the support, the love that everyone has shown for me, for all the messages.
“I'd like to tell you all that my dream is not over. It was interrupted, but it goes on. My dream is to be champion.
“My dream was also to play in a World Cup final. But it won't happen this time. I'm sure that they [Brazil] will win and be champions. And I'll be there, with them. And us, Brazilians, will all be celebrating this.”